79524864 has 66 divisors (see below), whose sum is σ = 229652930. Its totient is φ = 26505216.

The previous prime is 79524859. The next prime is 79524881. The reversal of 79524864 is 46842597.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74649600 + 4875264 = 8640^2 + 2208^2 .

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 5 ways as a sum of consecutive naturals, for example, 4902 + ... + 13530.

Almost surely, 2^79524864 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 79524864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114826465).

79524864 is an abundant number, since it is smaller than the sum of its proper divisors (150128066).

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

79524864 is a wasteful number, since it uses less digits than its factorization.

79524864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8655 (or 8634 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 79524864 is about 8917.6714449457. The cubic root of 79524864 is about 430.0322023837.

The spelling of 79524864 in words is "seventy-nine million, five hundred twenty-four thousand, eight hundred sixty-four".