79913808 has 60 divisors (see below), whose sum is σ = 240856980. Its totient is φ = 24588288.

The previous prime is 79913783. The next prime is 79913819. The reversal of 79913808 is 80831997.

It can be written as a sum of positive squares in 2 ways, for example, as 19820304 + 60093504 = 4452^2 + 7752^2 .

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 11 ways as a sum of consecutive naturals, for example, 19473 + ... + 23216.

It is an arithmetic number, because the mean of its divisors is an integer number (4014283).

Almost surely, 2^79913808 is an apocalyptic number.

79913808 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

79913808 is an abundant number, since it is smaller than the sum of its proper divisors (160943172).

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

79913808 is a wasteful number, since it uses less digits than its factorization.

79913808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42716 (or 42707 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 79913808 is about 8939.4523322181. The cubic root of 79913808 is about 430.7321365364.

The spelling of 79913808 in words is "seventy-nine million, nine hundred thirteen thousand, eight hundred eight".