79855688 has 32 divisors (see below), whose sum is σ = 165654720. Its totient is φ = 35784000.

The previous prime is 79855667. The next prime is 79855697. The reversal of 79855688 is 88655897.

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 7 ways as a sum of consecutive naturals, for example, 143 + ... + 12638.

It is an arithmetic number, because the mean of its divisors is an integer number (5176710).

Almost surely, 2^79855688 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 79855688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82827360).

79855688 is an abundant number, since it is smaller than the sum of its proper divisors (85799032).

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

79855688 is a wasteful number, since it uses less digits than its factorization.

79855688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12869 (or 12865 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 56.

The square root of 79855688 is about 8936.2009825205. The cubic root of 79855688 is about 430.6276897420.

The spelling of 79855688 in words is "seventy-nine million, eight hundred fifty-five thousand, six hundred eighty-eight".