79649868 has 48 divisors (see below), whose sum is σ = 190125824. Its totient is φ = 25945920.

The previous prime is 79649833. The next prime is 79649891. The reversal of 79649868 is 86894697.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125913 + ... + 126543.

Almost surely, 2^79649868 is an apocalyptic number.

It is an amenable number.

79649868 is an abundant number, since it is smaller than the sum of its proper divisors (110475956).

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

79649868 is a wasteful number, since it uses less digits than its factorization.

79649868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 860 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 79649868 is about 8924.6774731639. The cubic root of 79649868 is about 430.2574049234.

The spelling of 79649868 in words is "seventy-nine million, six hundred forty-nine thousand, eight hundred sixty-eight".