79947216 has 40 divisors (see below), whose sum is σ = 229479360. Its totient is φ = 26648928.

The previous prime is 79947211. The next prime is 79947223. The reversal of 79947216 is 61274997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79947211) 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 7 ways as a sum of consecutive naturals, for example, 92100 + ... + 92963.

It is an arithmetic number, because the mean of its divisors is an integer number (5736984).

Almost surely, 2^79947216 is an apocalyptic number.

It is an amenable number.

79947216 is an abundant number, since it is smaller than the sum of its proper divisors (149532144).

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

79947216 is a wasteful number, since it uses less digits than its factorization.

79947216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185080 (or 185068 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 79947216 is about 8941.3207078149. The cubic root of 79947216 is about 430.7921507559.

The spelling of 79947216 in words is "seventy-nine million, nine hundred forty-seven thousand, two hundred sixteen".