79685844 has 48 divisors (see below), whose sum is σ = 213362688. Its totient is φ = 22674528.

The previous prime is 79685843. The next prime is 79685857. The reversal of 79685844 is 44858697.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79685843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20289 + ... + 23895.

It is an arithmetic number, because the mean of its divisors is an integer number (4445056).

Almost surely, 2^79685844 is an apocalyptic number.

It is an amenable number.

79685844 is an abundant number, since it is smaller than the sum of its proper divisors (133676844).

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

79685844 is a wasteful number, since it uses less digits than its factorization.

79685844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884 (or 3882 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 79685844 is about 8926.6927806439. The cubic root of 79685844 is about 430.3221742733.

The spelling of 79685844 in words is "seventy-nine million, six hundred eighty-five thousand, eight hundred forty-four".