899789632 has 112 divisors (see below), whose sum is σ = 2140069888. Its totient is φ = 367234560.

The previous prime is 899789629. The next prime is 899789633. The reversal of 899789632 is 236987998.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899789633) 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 15 ways as a sum of consecutive naturals, for example, 930013 + ... + 930979.

Almost surely, 2^899789632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899789632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070034944).

899789632 is an abundant number, since it is smaller than the sum of its proper divisors (1240280256).

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

899789632 is a wasteful number, since it uses less digits than its factorization.

899789632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1074 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 61.

The square root of 899789632 is about 29996.4936617599. The cubic root of 899789632 is about 965.4141535323.

The spelling of 899789632 in words is "eight hundred ninety-nine million, seven hundred eighty-nine thousand, six hundred thirty-two".