800852004 has 18 divisors (see below), whose sum is σ = 2024375990. Its totient is φ = 266950656.

The previous prime is 800851991. The next prime is 800852009. The reversal of 800852004 is 400258008.

It can be written as a sum of positive squares in only one way, i.e., 594872100 + 205979904 = 24390^2 + 14352^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (800852009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11122909 + ... + 11122980.

Almost surely, 2^800852004 is an apocalyptic number.

It is an amenable number.

800852004 is an abundant number, since it is smaller than the sum of its proper divisors (1223523986).

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

800852004 is a wasteful number, since it uses less digits than its factorization.

800852004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22245899 (or 22245894 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 800852004 is about 28299.3286846172. The cubic root of 800852004 is about 928.6472041538.

The spelling of 800852004 in words is "eight hundred million, eight hundred fifty-two thousand, four".