800647056 has 60 divisors (see below), whose sum is σ = 2444404560. Its totient is φ = 242619840.

The previous prime is 800647039. The next prime is 800647069. The reversal of 800647056 is 650746008.

It is a happy number.

800647056 is a `hidden beast` number, since 8 + 0 + 0 + 647 + 0 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 800647056.

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 11 ways as a sum of consecutive naturals, for example, 251146 + ... + 254313.

It is an arithmetic number, because the mean of its divisors is an integer number (40740076).

Almost surely, 2^800647056 is an apocalyptic number.

It is an amenable number.

800647056 is an abundant number, since it is smaller than the sum of its proper divisors (1643757504).

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

800647056 is a wasteful number, since it uses less digits than its factorization.

800647056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505484 (or 505475 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 800647056 is about 28295.7073776218. The cubic root of 800647056 is about 928.5679799342.

The spelling of 800647056 in words is "eight hundred million, six hundred forty-seven thousand, fifty-six".