79726556 has 96 divisors (see below), whose sum is σ = 182891520. Its totient is φ = 29551104.

The previous prime is 79726547. The next prime is 79726567. The reversal of 79726556 is 65562797.

It is a super-2 number, since 2×79726556² = 12712647463242272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79726556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 745055 + ... + 745161.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 2^79726556 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 79726556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91445760).

79726556 is an abundant number, since it is smaller than the sum of its proper divisors (103164964).

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

79726556 is a wasteful number, since it uses less digits than its factorization.

79726556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 241 counting only the distinct ones).

The product of its digits is 793800, while the sum is 47.

The square root of 79726556 is about 8928.9728412623. The cubic root of 79726556 is about 430.3954465667.

The spelling of 79726556 in words is "seventy-nine million, seven hundred twenty-six thousand, five hundred fifty-six".