79792840 has 32 divisors (see below), whose sum is σ = 183358080. Its totient is φ = 31237312.

The previous prime is 79792813. The next prime is 79792859. The reversal of 79792840 is 4829797.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19342 + ... + 23101.

It is an arithmetic number, because the mean of its divisors is an integer number (5729940).

Almost surely, 2^79792840 is an apocalyptic number.

It is an amenable number.

79792840 is an abundant number, since it is smaller than the sum of its proper divisors (103565240).

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

79792840 is a wasteful number, since it uses less digits than its factorization.

79792840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42501 (or 42497 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 79792840 is about 8932.6838072329. The cubic root of 79792840 is about 430.5146892665.

The spelling of 79792840 in words is "seventy-nine million, seven hundred ninety-two thousand, eight hundred forty".