878256872 has 16 divisors (see below), whose sum is σ = 1648779300. Its totient is φ = 438582400.

The previous prime is 878256787. The next prime is 878256887. The reversal of 878256872 is 278652878.

It can be written as a sum of positive squares in 2 ways, for example, as 876988996 + 1267876 = 29614^2 + 1126^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61379 + ... + 74322.

Almost surely, 2^878256872 is an apocalyptic number.

It is an amenable number.

878256872 is a deficient number, since it is larger than the sum of its proper divisors (770522428).

878256872 is a wasteful number, since it uses less digits than its factorization.

878256872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136516 (or 136512 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 53.

The square root of 878256872 is about 29635.3989681259. The cubic root of 878256872 is about 957.6508214996.

The spelling of 878256872 in words is "eight hundred seventy-eight million, two hundred fifty-six thousand, eight hundred seventy-two".