79397904 has 20 divisors (see below), whose sum is σ = 205111376. Its totient is φ = 26465952.

The previous prime is 79397897. The next prime is 79397917. The reversal of 79397904 is 40979397.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1654123 = 79397904 / (7 + 9 + 3 + 9 + 7 + 9 + 0 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827014 + ... + 827109.

Almost surely, 2^79397904 is an apocalyptic number.

It is an amenable number.

79397904 is an abundant number, since it is smaller than the sum of its proper divisors (125713472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79397904 is a wasteful number, since it uses less digits than its factorization.

79397904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654134 (or 1654128 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 79397904 is about 8910.5501513655. The cubic root of 79397904 is about 429.8032342942.

The spelling of 79397904 in words is "seventy-nine million, three hundred ninety-seven thousand, nine hundred four".