39908975 has 12 divisors (see below), whose sum is σ = 49710360. Its totient is φ = 31783200.

The previous prime is 39908963. The next prime is 39908989. The reversal of 39908975 is 57980993.

It is not a de Polignac number, because 39908975 - 2⁸ = 39908719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2240 + ... + 9210.

It is an arithmetic number, because the mean of its divisors is an integer number (4142530).

Almost surely, 2^39908975 is an apocalyptic number.

39908975 is a deficient number, since it is larger than the sum of its proper divisors (9801385).

39908975 is a wasteful number, since it uses less digits than its factorization.

39908975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7210 (or 7205 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 39908975 is about 6317.3550636322. The cubic root of 39908975 is about 341.7355747062.

The spelling of 39908975 in words is "thirty-nine million, nine hundred eight thousand, nine hundred seventy-five".