877912856 has 16 divisors (see below), whose sum is σ = 1663058040. Its totient is φ = 434430720.

The previous prime is 877912837. The next prime is 877912873. The reversal of 877912856 is 658219778.

It is a junction number, because it is equal to n+sod(n) for n = 877912798 and 877912807.

It is a congruent number.

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, 564890 + ... + 566441.

Almost surely, 2^877912856 is an apocalyptic number.

It is an amenable number.

877912856 is a deficient number, since it is larger than the sum of its proper divisors (785145184).

877912856 is a wasteful number, since it uses less digits than its factorization.

877912856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131434 (or 1131430 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 53.

The square root of 877912856 is about 29629.5942597937. The cubic root of 877912856 is about 957.5257668829.

The spelling of 877912856 in words is "eight hundred seventy-seven million, nine hundred twelve thousand, eight hundred fifty-six".