899832109 has 6 divisors (see below), whose sum is σ = 989071790. Its totient is φ = 818029080.

The previous prime is 899832067. The next prime is 899832113. The reversal of 899832109 is 901238998.

899832109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 899820009 + 12100 = 29997^2 + 110^2 .

It is not a de Polignac number, because 899832109 - 2¹⁷ = 899701037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899832139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3718194 + ... + 3718435.

Almost surely, 2^899832109 is an apocalyptic number.

It is an amenable number.

899832109 is a deficient number, since it is larger than the sum of its proper divisors (89239681).

899832109 is a wasteful number, since it uses less digits than its factorization.

899832109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7436651 (or 7436640 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 899832109 is about 29997.2016861573. The cubic root of 899832109 is about 965.4293449542.

The spelling of 899832109 in words is "eight hundred ninety-nine million, eight hundred thirty-two thousand, one hundred nine".