49739 has 2 divisors, whose sum is σ = 49740. Its totient is φ = 49738.

The previous prime is 49727. The next prime is 49741. The reversal of 49739 is 93794.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49739 is a prime.

Together with 49741, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24869 + 24870.

It is an arithmetic number, because the mean of its divisors is an integer number (24870).

2⁴⁹⁷³⁹ is an apocalyptic number.

49739 is a deficient number, since it is larger than the sum of its proper divisors (1).

49739 is an equidigital number, since it uses as much as digits as its factorization.

49739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 32.

The square root of 49739 is about 223.0224203976. The cubic root of 49739 is about 36.7761009760.

The spelling of 49739 in words is "forty-nine thousand, seven hundred thirty-nine".