79457916 has 36 divisors (see below), whose sum is σ = 193828712. Its totient is φ = 25332384.

The previous prime is 79457899. The next prime is 79457923. The reversal of 79457916 is 61975497.

It is a happy number.

It is a congruent number.

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, 90 + ... + 12606.

Almost surely, 2^79457916 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 79457916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96914356).

79457916 is an abundant number, since it is smaller than the sum of its proper divisors (114370796).

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

79457916 is a wasteful number, since it uses less digits than its factorization.

79457916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12570 (or 12545 counting only the distinct ones).

The product of its digits is 476280, while the sum is 48.

The square root of 79457916 is about 8913.9169841322. The cubic root of 79457916 is about 429.9114943137.

The spelling of 79457916 in words is "seventy-nine million, four hundred fifty-seven thousand, nine hundred sixteen".