798772856 has 32 divisors (see below), whose sum is σ = 1715424480. Its totient is φ = 341577600.

The previous prime is 798772847. The next prime is 798772903. The reversal of 798772856 is 658277897.

It is a junction number, because it is equal to n+sod(n) for n = 798772795 and 798772804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10346 + ... + 41286.

It is an arithmetic number, because the mean of its divisors is an integer number (53607015).

Almost surely, 2^798772856 is an apocalyptic number.

It is an amenable number.

798772856 is an abundant number, since it is smaller than the sum of its proper divisors (916651624).

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

798772856 is a wasteful number, since it uses less digits than its factorization.

798772856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31415 (or 31411 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 59.

The square root of 798772856 is about 28262.5698760746. The cubic root of 798772856 is about 927.8428656608.

The spelling of 798772856 in words is "seven hundred ninety-eight million, seven hundred seventy-two thousand, eight hundred fifty-six".