79303680 has 132 divisors (see below), whose sum is σ = 274944852. Its totient is φ = 21135360.

The previous prime is 79303639. The next prime is 79303687. The reversal of 79303680 is 8630397.

It can be written as a sum of positive squares in 2 ways, for example, as 43877376 + 35426304 = 6624^2 + 5952^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79303687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45220 + ... + 46940.

Almost surely, 2^79303680 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 79303680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137472426).

79303680 is an abundant number, since it is smaller than the sum of its proper divisors (195641172).

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

79303680 is a wasteful number, since it uses less digits than its factorization.

79303680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 79303680 is about 8905.2613661812. The cubic root of 79303680 is about 429.6331466367.

The spelling of 79303680 in words is "seventy-nine million, three hundred three thousand, six hundred eighty".