79810564 has 12 divisors (see below), whose sum is σ = 147019600. Its totient is φ = 37804968.

The previous prime is 79810561. The next prime is 79810567. The reversal of 79810564 is 46501897.

It is an interprime number because it is at equal distance from previous prime (79810561) and next prime (79810567).

It is a super-2 number, since 2×79810564² = 12739452251996192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79810561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524994 + ... + 525145.

Almost surely, 2^79810564 is an apocalyptic number.

It is an amenable number.

79810564 is a deficient number, since it is larger than the sum of its proper divisors (67209036).

79810564 is a wasteful number, since it uses less digits than its factorization.

79810564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050162 (or 1050160 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 79810564 is about 8933.6758392053. The cubic root of 79810564 is about 430.5465629595.

The spelling of 79810564 in words is "seventy-nine million, eight hundred ten thousand, five hundred sixty-four".