79183920 has 160 divisors (see below), whose sum is σ = 262840320. Its totient is φ = 19676160.

The previous prime is 79183843. The next prime is 79183921. The reversal of 79183920 is 2938197.

It is not an unprimeable number, because it can be changed into a prime (79183921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215577 + ... + 215943.

It is an arithmetic number, because the mean of its divisors is an integer number (1642752).

Almost surely, 2^79183920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79183920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131420160).

79183920 is an abundant number, since it is smaller than the sum of its proper divisors (183656400).

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

79183920 is a wasteful number, since it uses less digits than its factorization.

79183920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 79183920 is about 8898.5347108386. The cubic root of 79183920 is about 429.4167683307.

The spelling of 79183920 in words is "seventy-nine million, one hundred eighty-three thousand, nine hundred twenty".