869438684 has 12 divisors (see below), whose sum is σ = 1611018864. Its totient is φ = 409147584.

The previous prime is 869438683. The next prime is 869438723. The reversal of 869438684 is 486834968.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869438681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6392864 + ... + 6392999.

It is an arithmetic number, because the mean of its divisors is an integer number (134251572).

Almost surely, 2^869438684 is an apocalyptic number.

It is an amenable number.

869438684 is a deficient number, since it is larger than the sum of its proper divisors (741580180).

869438684 is a wasteful number, since it uses less digits than its factorization.

869438684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12785884 (or 12785882 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 56.

The square root of 869438684 is about 29486.2456748905. The cubic root of 869438684 is about 954.4349183910.

The spelling of 869438684 in words is "eight hundred sixty-nine million, four hundred thirty-eight thousand, six hundred eighty-four".