864882944 has 18 divisors (see below), whose sum is σ = 1726387950. Its totient is φ = 432441344.

The previous prime is 864882899. The next prime is 864882971. The reversal of 864882944 is 449288468.

It can be written as a sum of positive squares in only one way, i.e., 847974400 + 16908544 = 29120^2 + 4112^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1688969 + ... + 1689480.

Almost surely, 2^864882944 is an apocalyptic number.

It is an amenable number.

864882944 is a deficient number, since it is larger than the sum of its proper divisors (861505006).

864882944 is an equidigital number, since it uses as much as digits as its factorization.

864882944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378465 (or 3378451 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 53.

The square root of 864882944 is about 29408.8922606752. The cubic root of 864882944 is about 952.7649619833.

The spelling of 864882944 in words is "eight hundred sixty-four million, eight hundred eighty-two thousand, nine hundred forty-four".