864675244 has 12 divisors (see below), whose sum is σ = 1537988368. Its totient is φ = 425250000.

The previous prime is 864675221. The next prime is 864675247. The reversal of 864675244 is 442576468.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 864675194 and 864675203.

It is not an unprimeable number, because it can be changed into a prime (864675247) 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, 1771632 + ... + 1772119.

Almost surely, 2^864675244 is an apocalyptic number.

It is an amenable number.

864675244 is a deficient number, since it is larger than the sum of its proper divisors (673313124).

864675244 is a wasteful number, since it uses less digits than its factorization.

864675244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543816 (or 3543814 counting only the distinct ones).

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

The square root of 864675244 is about 29405.3608037718. The cubic root of 864675244 is about 952.6886876439.

The spelling of 864675244 in words is "eight hundred sixty-four million, six hundred seventy-five thousand, two hundred forty-four".