878690636 has 12 divisors (see below), whose sum is σ = 1538665128. Its totient is φ = 439072032.

The previous prime is 878690623. The next prime is 878690641. The reversal of 878690636 is 636096878.

878690636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61001 + ... + 74016.

It is an arithmetic number, because the mean of its divisors is an integer number (128222094).

Almost surely, 2^878690636 is an apocalyptic number.

It is an amenable number.

878690636 is a deficient number, since it is larger than the sum of its proper divisors (659974492).

878690636 is a wasteful number, since it uses less digits than its factorization.

878690636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136648 (or 136646 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 878690636 is about 29642.7164072391. The cubic root of 878690636 is about 957.8084542288.

The spelling of 878690636 in words is "eight hundred seventy-eight million, six hundred ninety thousand, six hundred thirty-six".