899156964 has 24 divisors (see below), whose sum is σ = 2098613440. Its totient is φ = 299636064.

The previous prime is 899156927. The next prime is 899156983. The reversal of 899156964 is 469651998.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47922 + ... + 63990.

Almost surely, 2^899156964 is an apocalyptic number.

It is an amenable number.

899156964 is an abundant number, since it is smaller than the sum of its proper divisors (1199456476).

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

899156964 is a wasteful number, since it uses less digits than its factorization.

899156964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20739 (or 20737 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The square root of 899156964 is about 29985.9461081354. The cubic root of 899156964 is about 965.1878303157.

The spelling of 899156964 in words is "eight hundred ninety-nine million, one hundred fifty-six thousand, nine hundred sixty-four".