879209568 has 72 divisors (see below), whose sum is σ = 2503152288. Its totient is φ = 292730112.

The previous prime is 879209567. The next prime is 879209579. The reversal of 879209568 is 865902978.

It is a happy number.

879209568 is a `hidden beast` number, since 8 + 79 + 2 + 0 + 9 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879209561) 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, 427230 + ... + 429282.

It is an arithmetic number, because the mean of its divisors is an integer number (34766004).

Almost surely, 2^879209568 is an apocalyptic number.

It is an amenable number.

879209568 is an abundant number, since it is smaller than the sum of its proper divisors (1623942720).

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

879209568 is a wasteful number, since it uses less digits than its factorization.

879209568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556 (or 3545 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 879209568 is about 29651.4682267169. The cubic root of 879209568 is about 957.9969694364.

The spelling of 879209568 in words is "eight hundred seventy-nine million, two hundred nine thousand, five hundred sixty-eight".