869538912 has 72 divisors (see below), whose sum is σ = 2508940728. Its totient is φ = 263493120.

The previous prime is 869538881. The next prime is 869538913. The reversal of 869538912 is 219835968.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869538913) 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 11 ways as a sum of consecutive naturals, for example, 25813 + ... + 49044.

It is an arithmetic number, because the mean of its divisors is an integer number (34846399).

Almost surely, 2^869538912 is an apocalyptic number.

It is an amenable number.

869538912 is an abundant number, since it is smaller than the sum of its proper divisors (1639401816).

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

869538912 is a wasteful number, since it uses less digits than its factorization.

869538912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74892 (or 74873 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The square root of 869538912 is about 29487.9451979957. The cubic root of 869538912 is about 954.4715924080.

The spelling of 869538912 in words is "eight hundred sixty-nine million, five hundred thirty-eight thousand, nine hundred twelve".