899531872 has 24 divisors (see below), whose sum is σ = 1808636256. Its totient is φ = 440195712.

The previous prime is 899531869. The next prime is 899531887. The reversal of 899531872 is 278135998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297543 + ... + 300550.

It is an arithmetic number, because the mean of its divisors is an integer number (75359844).

Almost surely, 2^899531872 is an apocalyptic number.

It is an amenable number.

899531872 is an abundant number, since it is smaller than the sum of its proper divisors (909104384).

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

899531872 is a wasteful number, since it uses less digits than its factorization.

899531872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598150 (or 598142 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The square root of 899531872 is about 29992.1968518480. The cubic root of 899531872 is about 965.3219583091.

The spelling of 899531872 in words is "eight hundred ninety-nine million, five hundred thirty-one thousand, eight hundred seventy-two".