79884520 has 64 divisors (see below), whose sum is σ = 193674240. Its totient is φ = 29568000.

The previous prime is 79884509. The next prime is 79884521. The reversal of 79884520 is 2548897.

It is not an unprimeable number, because it can be changed into a prime (79884521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27120 + ... + 29920.

It is an arithmetic number, because the mean of its divisors is an integer number (3026160).

Almost surely, 2^79884520 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 79884520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96837120).

79884520 is an abundant number, since it is smaller than the sum of its proper divisors (113789720).

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

79884520 is a wasteful number, since it uses less digits than its factorization.

79884520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866 (or 2862 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 79884520 is about 8937.8140504264. The cubic root of 79884520 is about 430.6795097351.

The spelling of 79884520 in words is "seventy-nine million, eight hundred eighty-four thousand, five hundred twenty".