79880885 has 16 divisors (see below), whose sum is σ = 112100736. Its totient is φ = 53500608.

The previous prime is 79880881. The next prime is 79880897. The reversal of 79880885 is 58808897.

It is not a de Polignac number, because 79880885 - 2² = 79880881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79880881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25034 + ... + 28043.

It is an arithmetic number, because the mean of its divisors is an integer number (7006296).

Almost surely, 2^79880885 is an apocalyptic number.

It is an amenable number.

79880885 is a deficient number, since it is larger than the sum of its proper divisors (32219851).

79880885 is a wasteful number, since it uses less digits than its factorization.

79880885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53132.

The product of its (nonzero) digits is 1290240, while the sum is 53.

The square root of 79880885 is about 8937.6106986152. The cubic root of 79880885 is about 430.6729772064.

The spelling of 79880885 in words is "seventy-nine million, eight hundred eighty thousand, eight hundred eighty-five".