79716686 has 32 divisors (see below), whose sum is σ = 142829568. Its totient is φ = 32649120.

The previous prime is 79716673. The next prime is 79716697. The reversal of 79716686 is 68661797.

It is a congruent number.

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, 34916 + ... + 37128.

It is an arithmetic number, because the mean of its divisors is an integer number (4463424).

Almost surely, 2^79716686 is an apocalyptic number.

79716686 is a deficient number, since it is larger than the sum of its proper divisors (63112882).

79716686 is a wasteful number, since it uses less digits than its factorization.

79716686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336.

The product of its digits is 762048, while the sum is 50.

The square root of 79716686 is about 8928.4201290038. The cubic root of 79716686 is about 430.3776851140.

The spelling of 79716686 in words is "seventy-nine million, seven hundred sixteen thousand, six hundred eighty-six".