39500913 has 32 divisors (see below), whose sum is σ = 57876480. Its totient is φ = 23886720.

The previous prime is 39500893. The next prime is 39500927. The reversal of 39500913 is 31900593.

It is not a de Polignac number, because 39500913 - 2⁶ = 39500849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39500113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126045 + ... + 126357.

It is an arithmetic number, because the mean of its divisors is an integer number (1808640).

Almost surely, 2^39500913 is an apocalyptic number.

It is an amenable number.

39500913 is a deficient number, since it is larger than the sum of its proper divisors (18375567).

39500913 is a wasteful number, since it uses less digits than its factorization.

39500913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 39500913 is about 6284.9751789486. The cubic root of 39500913 is about 340.5668542895.

The spelling of 39500913 in words is "thirty-nine million, five hundred thousand, nine hundred thirteen".