79678764 has 36 divisors (see below), whose sum is σ = 219721320. Its totient is φ = 24144960.

The previous prime is 79678751. The next prime is 79678787. The reversal of 79678764 is 46787697.

79678764 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

79678764 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 79678764.

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, 100209 + ... + 101000.

It is an arithmetic number, because the mean of its divisors is an integer number (6103370).

Almost surely, 2^79678764 is an apocalyptic number.

It is an amenable number.

79678764 is an abundant number, since it is smaller than the sum of its proper divisors (140042556).

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

79678764 is a wasteful number, since it uses less digits than its factorization.

79678764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201230 (or 201225 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 79678764 is about 8926.2962083946. The cubic root of 79678764 is about 430.3094293444.

The spelling of 79678764 in words is "seventy-nine million, six hundred seventy-eight thousand, seven hundred sixty-four".