800847956 has 12 divisors (see below), whose sum is σ = 1401885492. Its totient is φ = 400309248.

The previous prime is 800847947. The next prime is 800848001. The reversal of 800847956 is 659748008.

It can be written as a sum of positive squares in 2 ways, for example, as 267976900 + 532871056 = 16370^2 + 23084^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 800847956.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11885 + ... + 41748.

It is an arithmetic number, because the mean of its divisors is an integer number (116823791).

Almost surely, 2^800847956 is an apocalyptic number.

It is an amenable number.

800847956 is a deficient number, since it is larger than the sum of its proper divisors (601037536).

800847956 is a wasteful number, since it uses less digits than its factorization.

800847956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57370 (or 57368 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 800847956 is about 28299.2571633956. The cubic root of 800847956 is about 928.6456394992.

The spelling of 800847956 in words is "eight hundred million, eight hundred forty-seven thousand, nine hundred fifty-six".