800898990 has 16 divisors (see below), whose sum is σ = 1922157648. Its totient is φ = 213573056.

The previous prime is 800898983. The next prime is 800898991. The reversal of 800898990 is 99898008.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800898991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13348287 + ... + 13348346.

It is an arithmetic number, because the mean of its divisors is an integer number (120134853).

Almost surely, 2^800898990 is an apocalyptic number.

800898990 is an abundant number, since it is smaller than the sum of its proper divisors (1121258658).

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

800898990 is a wasteful number, since it uses less digits than its factorization.

800898990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26696643.

The product of its (nonzero) digits is 373248, while the sum is 51.

The square root of 800898990 is about 28300.1588334765. The cubic root of 800898990 is about 928.6653650474.

The spelling of 800898990 in words is "eight hundred million, eight hundred ninety-eight thousand, nine hundred ninety".