800847959 has 4 divisors (see below), whose sum is σ = 801229440. Its totient is φ = 800466480.

The previous prime is 800847947. The next prime is 800848001. The reversal of 800847959 is 959748008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-800847959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800847919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187574 + ... + 191795.

It is an arithmetic number, because the mean of its divisors is an integer number (200307360).

Almost surely, 2^800847959 is an apocalyptic number.

800847959 is a deficient number, since it is larger than the sum of its proper divisors (381481).

800847959 is a wasteful number, since it uses less digits than its factorization.

800847959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381480.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 800847959 is about 28299.2572164006. The cubic root of 800847959 is about 928.6456406588.

The spelling of 800847959 in words is "eight hundred million, eight hundred forty-seven thousand, nine hundred fifty-nine".