864895232 has 18 divisors (see below), whose sum is σ = 1726412478. Its totient is φ = 432447488.

The previous prime is 864895211. The next prime is 864895237. The reversal of 864895232 is 232598468.

It can be written as a sum of positive squares in only one way, i.e., 825757696 + 39137536 = 28736^2 + 6256^2 .

It is not an unprimeable number, because it can be changed into a prime (864895237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1688993 + ... + 1689504.

Almost surely, 2^864895232 is an apocalyptic number.

It is an amenable number.

864895232 is a deficient number, since it is larger than the sum of its proper divisors (861517246).

864895232 is an equidigital number, since it uses as much as digits as its factorization.

864895232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378513 (or 3378499 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 864895232 is about 29409.1011763366. The cubic root of 864895232 is about 952.7694741624.

The spelling of 864895232 in words is "eight hundred sixty-four million, eight hundred ninety-five thousand, two hundred thirty-two".