79966368 has 72 divisors (see below), whose sum is σ = 240795828. Its totient is φ = 25085952.

The previous prime is 79966357. The next prime is 79966387. The reversal of 79966368 is 86366997.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79067664 + 898704 = 8892^2 + 948^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×79966368² = 12789240022222848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3271 + ... + 13062.

Almost surely, 2^79966368 is an apocalyptic number.

It is an amenable number.

79966368 is an abundant number, since it is smaller than the sum of its proper divisors (160829460).

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

79966368 is a wasteful number, since it uses less digits than its factorization.

79966368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16366 (or 16355 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 79966368 is about 8942.3916264051. The cubic root of 79966368 is about 430.8265479200.

The spelling of 79966368 in words is "seventy-nine million, nine hundred sixty-six thousand, three hundred sixty-eight".