864532 has 6 divisors (see below), whose sum is σ = 1512938. Its totient is φ = 432264.

The previous prime is 864511. The next prime is 864533. The reversal of 864532 is 235468.

It can be written as a sum of positive squares in only one way, i.e., 857476 + 7056 = 926^2 + 84^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 864532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108063 + ... + 108070.

2⁸⁶⁴⁵³² is an apocalyptic number.

It is an amenable number.

864532 is a deficient number, since it is larger than the sum of its proper divisors (648406).

864532 is a wasteful number, since it uses less digits than its factorization.

864532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216137 (or 216135 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 864532 is about 929.8021294878. The cubic root of 864532 is about 95.2636076572.

The spelling of 864532 in words is "eight hundred sixty-four thousand, five hundred thirty-two".