79818004 has 24 divisors (see below), whose sum is σ = 166578048. Its totient is φ = 32720160.

The previous prime is 79817999. The next prime is 79818017. The reversal of 79818004 is 40081897.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61327 + ... + 62614.

It is an arithmetic number, because the mean of its divisors is an integer number (6940752).

Almost surely, 2^79818004 is an apocalyptic number.

It is an amenable number.

79818004 is an abundant number, since it is smaller than the sum of its proper divisors (86760044).

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

79818004 is a wasteful number, since it uses less digits than its factorization.

79818004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123975 (or 123973 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 79818004 is about 8934.0922314469. The cubic root of 79818004 is about 430.5599411672.

The spelling of 79818004 in words is "seventy-nine million, eight hundred eighteen thousand, four".