800804881 has 4 divisors (see below), whose sum is σ = 801771700. Its totient is φ = 799838064.

The previous prime is 800804831. The next prime is 800804887. The reversal of 800804881 is 188408008.

800804881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 394419600 + 406385281 = 19860^2 + 20159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-800804881 is a prime.

It is a super-2 number, since 2×800804881² = 1282576914866848322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 800804881.

It is not an unprimeable number, because it can be changed into a prime (800804887) 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, 482166 + ... + 483823.

It is an arithmetic number, because the mean of its divisors is an integer number (200442925).

Almost surely, 2^800804881 is an apocalyptic number.

It is an amenable number.

800804881 is a deficient number, since it is larger than the sum of its proper divisors (966819).

800804881 is an equidigital number, since it uses as much as digits as its factorization.

800804881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966818.

The product of its (nonzero) digits is 16384, while the sum is 37.

The square root of 800804881 is about 28298.4960907819. The cubic root of 800804881 is about 928.6289895938.

The spelling of 800804881 in words is "eight hundred million, eight hundred four thousand, eight hundred eighty-one".