79872492 has 96 divisors (see below), whose sum is σ = 226078720. Its totient is φ = 21461760.

The previous prime is 79872451. The next prime is 79872521. The reversal of 79872492 is 29427897.

It is a super-2 number, since 2×79872492² = 12759229956580128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95934 + ... + 96762.

Almost surely, 2^79872492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79872492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113039360).

79872492 is an abundant number, since it is smaller than the sum of its proper divisors (146206228).

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

79872492 is a wasteful number, since it uses less digits than its factorization.

79872492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 909 counting only the distinct ones).

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

The square root of 79872492 is about 8937.1411536352. The cubic root of 79872492 is about 430.6578932269.

The spelling of 79872492 in words is "seventy-nine million, eight hundred seventy-two thousand, four hundred ninety-two".