79756920 has 64 divisors (see below), whose sum is σ = 265860000. Its totient is φ = 21268224.

The previous prime is 79756913. The next prime is 79756933. The reversal of 79756920 is 2965797.

It is a super-2 number, since 2×79756920² = 12722332575772800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35845 + ... + 38004.

Almost surely, 2^79756920 is an apocalyptic number.

It is an amenable number.

79756920 is an abundant number, since it is smaller than the sum of its proper divisors (186103080).

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

79756920 is a wasteful number, since it uses less digits than its factorization.

79756920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73869 (or 73859 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 79756920 is about 8930.6729869590. The cubic root of 79756920 is about 430.4500785877.

The spelling of 79756920 in words is "seventy-nine million, seven hundred fifty-six thousand, nine hundred twenty".