168730 has 16 divisors (see below), whose sum is σ = 311040. Its totient is φ = 65872.

The previous prime is 168719. The next prime is 168731. The reversal of 168730 is 37861.

168730 is nontrivially palindromic in base 4.

Together with 142310 it forms an amicable pair .

It is a junction number, because it is equal to n+sod(n) for n = 168695 and 168704.

It is not an unprimeable number, because it can be changed into a prime (168731) 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, 291 + ... + 649.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2¹⁶⁸⁷³⁰ is an apocalyptic number.

168730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168730 is a deficient number, since it is larger than the sum of its proper divisors (142310).

168730 is a wasteful number, since it uses less digits than its factorization.

168730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 168730 is about 410.7675741828. The cubic root of 168730 is about 55.2582892636.

It can be divided in two parts, 168 and 730, that added together give a palindrome (898).

The spelling of 168730 in words is "one hundred sixty-eight thousand, seven hundred thirty".