79808872 has 32 divisors (see below), whose sum is σ = 175805280. Its totient is φ = 33485760.

The previous prime is 79808857. The next prime is 79808891. The reversal of 79808872 is 27880897.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33738 + ... + 36025.

It is an arithmetic number, because the mean of its divisors is an integer number (5493915).

Almost surely, 2^79808872 is an apocalyptic number.

It is an amenable number.

79808872 is an abundant number, since it is smaller than the sum of its proper divisors (95996408).

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

79808872 is a wasteful number, since it uses less digits than its factorization.

79808872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69793 (or 69789 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 79808872 is about 8933.5811408416. The cubic root of 79808872 is about 430.5435203801.

The spelling of 79808872 in words is "seventy-nine million, eight hundred eight thousand, eight hundred seventy-two".