79678672 has 20 divisors (see below), whose sum is σ = 156240000. Its totient is φ = 39358688.

The previous prime is 79678639. The next prime is 79678679. The reversal of 79678672 is 27687697.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79678679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28672 + ... + 31327.

It is an arithmetic number, because the mean of its divisors is an integer number (7812000).

Almost surely, 2^79678672 is an apocalyptic number.

It is an amenable number.

79678672 is a deficient number, since it is larger than the sum of its proper divisors (76561328).

79678672 is a wasteful number, since it uses less digits than its factorization.

79678672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60090 (or 60084 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 52.

The square root of 79678672 is about 8926.2910550799. The cubic root of 79678672 is about 430.3092637274.

The spelling of 79678672 in words is "seventy-nine million, six hundred seventy-eight thousand, six hundred seventy-two".