79331904 has 84 divisors (see below), whose sum is σ = 232751376. Its totient is φ = 25820928.

The previous prime is 79331893. The next prime is 79331909. The reversal of 79331904 is 40913397.

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

It is not an unprimeable number, because it can be changed into a prime (79331909) 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, 23167 + ... + 26369.

Almost surely, 2^79331904 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 79331904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116375688).

79331904 is an abundant number, since it is smaller than the sum of its proper divisors (153419472).

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

79331904 is a wasteful number, since it uses less digits than its factorization.

79331904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264 (or 3251 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 79331904 is about 8906.8459063801. The cubic root of 79331904 is about 429.6841090791.

The spelling of 79331904 in words is "seventy-nine million, three hundred thirty-one thousand, nine hundred four".