79942872 has 32 divisors (see below), whose sum is σ = 200202480. Its totient is φ = 26601600.

The previous prime is 79942843. The next prime is 79942883. The reversal of 79942872 is 27824997.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 13122 + ... + 18222.

Almost surely, 2^79942872 is an apocalyptic number.

It is an amenable number.

79942872 is an abundant number, since it is smaller than the sum of its proper divisors (120259608).

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

79942872 is a wasteful number, since it uses less digits than its factorization.

79942872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5763 (or 5759 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 79942872 is about 8941.0777873811. The cubic root of 79942872 is about 430.7843481285.

The spelling of 79942872 in words is "seventy-nine million, nine hundred forty-two thousand, eight hundred seventy-two".