899161572 has 72 divisors (see below), whose sum is σ = 2191844928. Its totient is φ = 286856640.

The previous prime is 899161561. The next prime is 899161607. The reversal of 899161572 is 275161998.

899161572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×899161572² = 1616983065123022368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1187418 + ... + 1188174.

Almost surely, 2^899161572 is an apocalyptic number.

It is an amenable number.

899161572 is an abundant number, since it is smaller than the sum of its proper divisors (1292683356).

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

899161572 is a wasteful number, since it uses less digits than its factorization.

899161572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 896 counting only the distinct ones).

The product of its digits is 272160, while the sum is 48.

The square root of 899161572 is about 29986.0229440318. The cubic root of 899161572 is about 965.1894791112.

The spelling of 899161572 in words is "eight hundred ninety-nine million, one hundred sixty-one thousand, five hundred seventy-two".