79210656 has 144 divisors (see below), whose sum is σ = 268894080. Its totient is φ = 22619520.

The previous prime is 79210613. The next prime is 79210661. The reversal of 79210656 is 65601297.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 79210656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41401 + ... + 43271.

It is an arithmetic number, because the mean of its divisors is an integer number (1867320).

Almost surely, 2^79210656 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 79210656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134447040).

79210656 is an abundant number, since it is smaller than the sum of its proper divisors (189683424).

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

79210656 is a wasteful number, since it uses less digits than its factorization.

79210656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904 (or 1883 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 79210656 is about 8900.0368538563. The cubic root of 79210656 is about 429.4650929350.

The spelling of 79210656 in words is "seventy-nine million, two hundred ten thousand, six hundred fifty-six".