878731056 has 120 divisors (see below), whose sum is σ = 2886627744. Its totient is φ = 244270080.

The previous prime is 878731039. The next prime is 878731079. The reversal of 878731056 is 650137878.

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 23 ways as a sum of consecutive naturals, for example, 25516 + ... + 49076.

Almost surely, 2^878731056 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 878731056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443313872).

878731056 is an abundant number, since it is smaller than the sum of its proper divisors (2007896688).

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

878731056 is a wasteful number, since it uses less digits than its factorization.

878731056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23619 (or 23610 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 878731056 is about 29643.3981857681. The cubic root of 878731056 is about 957.8231404838.

The spelling of 878731056 in words is "eight hundred seventy-eight million, seven hundred thirty-one thousand, fifty-six".