79479072 has 36 divisors (see below), whose sum is σ = 226019430. Its totient is φ = 26492928.

The previous prime is 79479067. The next prime is 79479083. The reversal of 79479072 is 27097497.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 76108176 + 3370896 = 8724^2 + 1836^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137697 + ... + 138272.

Almost surely, 2^79479072 is an apocalyptic number.

79479072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

79479072 is an abundant number, since it is smaller than the sum of its proper divisors (146540358).

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

79479072 is a wasteful number, since it uses less digits than its factorization.

79479072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275985 (or 275974 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 79479072 is about 8915.1035888541. The cubic root of 79479072 is about 429.9496461679.

The spelling of 79479072 in words is "seventy-nine million, four hundred seventy-nine thousand, seventy-two".