79933620 has 72 divisors (see below), whose sum is σ = 242385696. Its totient is φ = 19673472.

The previous prime is 79933597. The next prime is 79933669. The reversal of 79933620 is 2633997.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6199 + ... + 14081.

It is an arithmetic number, because the mean of its divisors is an integer number (3366468).

Almost surely, 2^79933620 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 79933620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121192848).

79933620 is an abundant number, since it is smaller than the sum of its proper divisors (162452076).

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

79933620 is a wasteful number, since it uses less digits than its factorization.

79933620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7921 (or 7906 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 79933620 is about 8940.5603851213. The cubic root of 79933620 is about 430.7677288834.

The spelling of 79933620 in words is "seventy-nine million, nine hundred thirty-three thousand, six hundred twenty".