79720808 has 32 divisors (see below), whose sum is σ = 158995200. Its totient is φ = 37366272.

The previous prime is 79720801. The next prime is 79720819. The reversal of 79720808 is 80802797.

It is not an unprimeable number, because it can be changed into a prime (79720801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12041 + ... + 17447.

It is an arithmetic number, because the mean of its divisors is an integer number (4968600).

Almost surely, 2^79720808 is an apocalyptic number.

It is an amenable number.

79720808 is a deficient number, since it is larger than the sum of its proper divisors (79274392).

79720808 is a wasteful number, since it uses less digits than its factorization.

79720808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529 (or 5525 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 79720808 is about 8928.6509619315. The cubic root of 79720808 is about 430.3851029932.

The spelling of 79720808 in words is "seventy-nine million, seven hundred twenty thousand, eight hundred eight".