79864056 has 80 divisors (see below), whose sum is σ = 229808040. Its totient is φ = 25894080.

The previous prime is 79864039. The next prime is 79864063. The reversal of 79864056 is 65046897.

It is a super-2 number, since 2×79864056² = 12756534881542272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22311 + ... + 25641.

Almost surely, 2^79864056 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 79864056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114904020).

79864056 is an abundant number, since it is smaller than the sum of its proper divisors (149943984).

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

79864056 is a wasteful number, since it uses less digits than its factorization.

79864056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386 (or 3373 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 79864056 is about 8936.6691781670. The cubic root of 79864056 is about 430.6427309025.

The spelling of 79864056 in words is "seventy-nine million, eight hundred sixty-four thousand, fifty-six".