865332 has 54 divisors (see below), whose sum is σ = 2411682. Its totient is φ = 260064.

The previous prime is 865327. The next prime is 865339. The reversal of 865332 is 233568.

865332 is a `hidden beast` number, since 8 + 653 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 599076 + 266256 = 774^2 + 516^2 .

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 865296 and 865305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865339) by changing a digit.

865332 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20103 + ... + 20145.

2⁸⁶⁵³³² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 865332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205841).

865332 is an abundant number, since it is smaller than the sum of its proper divisors (1546350).

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

865332 is a wasteful number, since it uses less digits than its factorization.

865332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 61 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 865332 is about 930.2322290697. The cubic root of 865332 is about 95.2929828532.

The spelling of 865332 in words is "eight hundred sixty-five thousand, three hundred thirty-two".