79545920 has 56 divisors (see below), whose sum is σ = 190243968. Its totient is φ = 31680000.

The previous prime is 79545889. The next prime is 79545943. The reversal of 79545920 is 2954597.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105545 + ... + 106295.

Almost surely, 2^79545920 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 79545920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95121984).

79545920 is an abundant number, since it is smaller than the sum of its proper divisors (110698048).

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

79545920 is a wasteful number, since it uses less digits than its factorization.

79545920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 79545920 is about 8918.8519440565. The cubic root of 79545920 is about 430.0701526069.

The spelling of 79545920 in words is "seventy-nine million, five hundred forty-five thousand, nine hundred twenty".