864446752 has 24 divisors (see below), whose sum is σ = 1832794236. Its totient is φ = 398975232.

The previous prime is 864446731. The next prime is 864446767. The reversal of 864446752 is 257644468.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 862244496 + 2202256 = 29364^2 + 1484^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038583 + ... + 1039414.

Almost surely, 2^864446752 is an apocalyptic number.

It is an amenable number.

864446752 is an abundant number, since it is smaller than the sum of its proper divisors (968347484).

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

864446752 is a wasteful number, since it uses less digits than its factorization.

864446752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078020 (or 2078012 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 46.

The square root of 864446752 is about 29401.4753371323. The cubic root of 864446752 is about 952.6047636804.

The spelling of 864446752 in words is "eight hundred sixty-four million, four hundred forty-six thousand, seven hundred fifty-two".