39928317 has 32 divisors (see below), whose sum is σ = 63038976. Its totient is φ = 22161600.

The previous prime is 39928313. The next prime is 39928319. The reversal of 39928317 is 71382993.

39928317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39928317 - 2² = 39928313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39928313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69642 + ... + 70212.

It is an arithmetic number, because the mean of its divisors is an integer number (1969968).

Almost surely, 2^39928317 is an apocalyptic number.

It is an amenable number.

39928317 is a deficient number, since it is larger than the sum of its proper divisors (23110659).

39928317 is a wasteful number, since it uses less digits than its factorization.

39928317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761.

The product of its digits is 81648, while the sum is 42.

The square root of 39928317 is about 6318.8857403818. The cubic root of 39928317 is about 341.7907735009.

The spelling of 39928317 in words is "thirty-nine million, nine hundred twenty-eight thousand, three hundred seventeen".