79790656 has 112 divisors (see below), whose sum is σ = 187634880. Its totient is φ = 33259520.

The previous prime is 79790609. The next prime is 79790663. The reversal of 79790656 is 65609797.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706056 + ... + 706168.

Almost surely, 2^79790656 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 79790656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93817440).

79790656 is an abundant number, since it is smaller than the sum of its proper divisors (107844224).

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

79790656 is a wasteful number, since it uses less digits than its factorization.

79790656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 79790656 is about 8932.5615587020. The cubic root of 79790656 is about 430.5107613759.

The spelling of 79790656 in words is "seventy-nine million, seven hundred ninety thousand, six hundred fifty-six".