79702120 has 32 divisors (see below), whose sum is σ = 189880200. Its totient is φ = 30005248.

The previous prime is 79702109. The next prime is 79702123. The reversal of 79702120 is 2120797.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 58890276 + 20811844 = 7674^2 + 4562^2 .

It is not an unprimeable number, because it can be changed into a prime (79702123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57925 + ... + 59284.

Almost surely, 2^79702120 is an apocalyptic number.

It is an amenable number.

79702120 is an abundant number, since it is smaller than the sum of its proper divisors (110178080).

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

79702120 is a wasteful number, since it uses less digits than its factorization.

79702120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117237 (or 117233 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 79702120 is about 8927.6043819157. The cubic root of 79702120 is about 430.3514703463.

The spelling of 79702120 in words is "seventy-nine million, seven hundred two thousand, one hundred twenty".