879431904 has 120 divisors (see below), whose sum is σ = 2785444200. Its totient is φ = 270584064.

The previous prime is 879431869. The next prime is 879431953. The reversal of 879431904 is 409134978.

It is a self number, because there is not a number n which added to its sum of digits gives 879431904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20647 + ... + 46745.

It is an arithmetic number, because the mean of its divisors is an integer number (23212035).

Almost surely, 2^879431904 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 879431904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1392722100).

879431904 is an abundant number, since it is smaller than the sum of its proper divisors (1906012296).

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

879431904 is a wasteful number, since it uses less digits than its factorization.

879431904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26134 (or 26117 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 879431904 is about 29655.2171463977. The cubic root of 879431904 is about 958.0777159274.

The spelling of 879431904 in words is "eight hundred seventy-nine million, four hundred thirty-one thousand, nine hundred four".