79879824 has 80 divisors (see below), whose sum is σ = 230788800. Its totient is φ = 26452224.

The previous prime is 79879801. The next prime is 79879831. The reversal of 79879824 is 42897897.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 76812 + ... + 77844.

It is an arithmetic number, because the mean of its divisors is an integer number (2884860).

Almost surely, 2^79879824 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 79879824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115394400).

79879824 is an abundant number, since it is smaller than the sum of its proper divisors (150908976).

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

79879824 is a wasteful number, since it uses less digits than its factorization.

79879824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1217 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 79879824 is about 8937.5513425099. The cubic root of 79879824 is about 430.6710704254.

The spelling of 79879824 in words is "seventy-nine million, eight hundred seventy-nine thousand, eight hundred twenty-four".