3699 has 8 divisors (see below), whose sum is σ = 5520. Its totient is φ = 2448.

The previous prime is 3697. The next prime is 3701. The reversal of 3699 is 9963.

It is an interprime number because it is at equal distance from previous prime (3697) and next prime (3701).

It is not a de Polignac number, because 3699 - 2¹ = 3697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 137 = 3699 / (3 + 6 + 9 + 9).

3699 is a modest number, since divided by 99 gives 36 as remainder.

It is a plaindrome in base 10 and base 15.

It is a nialpdrome in base 16.

It is a zygodrome in base 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 3699.

It is not an unprimeable number, because it can be changed into a prime (3691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 95.

It is an arithmetic number, because the mean of its divisors is an integer number (690).

2³⁶⁹⁹ is an apocalyptic number.

3699 is a deficient number, since it is larger than the sum of its proper divisors (1821).

3699 is a wasteful number, since it uses less digits than its factorization.

3699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 140 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 3699 is about 60.8194047981. The cubic root of 3699 is about 15.4654102064.

It can be divided in two parts, 369 and 9, that multiplied together give a triangular number (3321 = T₈₁).

The spelling of 3699 in words is "three thousand, six hundred ninety-nine".