879768136 has 32 divisors (see below), whose sum is σ = 1777902840. Its totient is φ = 405715968.

The previous prime is 879768107. The next prime is 879768143. The reversal of 879768136 is 631867978.

It can be written as a sum of positive squares in 4 ways, for example, as 617522500 + 262245636 = 24850^2 + 16194^2 .

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163440 + ... + 168736.

Almost surely, 2^879768136 is an apocalyptic number.

It is an amenable number.

879768136 is an abundant number, since it is smaller than the sum of its proper divisors (898134704).

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

879768136 is a wasteful number, since it uses less digits than its factorization.

879768136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6913 (or 6909 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 55.

The square root of 879768136 is about 29660.8856239998. The cubic root of 879768136 is about 958.1998005519.

The spelling of 879768136 in words is "eight hundred seventy-nine million, seven hundred sixty-eight thousand, one hundred thirty-six".