79904900 has 36 divisors (see below), whose sum is σ = 177631860. Its totient is φ = 31180800.

The previous prime is 79904893. The next prime is 79904911. The reversal of 79904900 is 940997.

It can be written as a sum of positive squares in 6 ways, for example, as 37185604 + 42719296 = 6098^2 + 6536^2 .

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, 5645 + ... + 13844.

Almost surely, 2^79904900 is an apocalyptic number.

It is an amenable number.

79904900 is an abundant number, since it is smaller than the sum of its proper divisors (97726960).

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

79904900 is a wasteful number, since it uses less digits than its factorization.

79904900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19544 (or 19537 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 79904900 is about 8938.9540775194. The cubic root of 79904900 is about 430.7161313572.

The spelling of 79904900 in words is "seventy-nine million, nine hundred four thousand, nine hundred".