79813320 has 32 divisors (see below), whose sum is σ = 239440320. Its totient is φ = 21283520.

The previous prime is 79813259. The next prime is 79813337. The reversal of 79813320 is 2331897.

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, 332436 + ... + 332675.

It is an arithmetic number, because the mean of its divisors is an integer number (7482510).

Almost surely, 2^79813320 is an apocalyptic number.

It is an amenable number.

79813320 is an abundant number, since it is smaller than the sum of its proper divisors (159627000).

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

79813320 is a wasteful number, since it uses less digits than its factorization.

79813320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665125 (or 665121 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 79813320 is about 8933.8300856911. The cubic root of 79813320 is about 430.5515187474.

The spelling of 79813320 in words is "seventy-nine million, eight hundred thirteen thousand, three hundred twenty".