397264904 has 16 divisors (see below), whose sum is σ = 749443920. Its totient is φ = 197413200.

The previous prime is 397264897. The next prime is 397264913. The reversal of 397264904 is 409462793.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 151022 + ... + 153629.

It is an arithmetic number, because the mean of its divisors is an integer number (46840245).

Almost surely, 2^397264904 is an apocalyptic number.

It is an amenable number.

397264904 is a deficient number, since it is larger than the sum of its proper divisors (352179016).

397264904 is a wasteful number, since it uses less digits than its factorization.

397264904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304820 (or 304816 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 397264904 is about 19931.5053119427. The cubic root of 397264904 is about 735.1230941352.

The spelling of 397264904 in words is "three hundred ninety-seven million, two hundred sixty-four thousand, nine hundred four".