865472 has 14 divisors (see below), whose sum is σ = 1717548. Its totient is φ = 432704.

The previous prime is 865457. The next prime is 865477. The reversal of 865472 is 274568.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (865477) by changing a digit.

865472 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 as a sum of consecutive naturals, namely, 6698 + ... + 6825.

It is an arithmetic number, because the mean of its divisors is an integer number (122682).

2⁸⁶⁵⁴⁷² is an apocalyptic number.

It is an amenable number.

865472 is a deficient number, since it is larger than the sum of its proper divisors (852076).

865472 is a wasteful number, since it uses less digits than its factorization.

865472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13535 (or 13525 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 865472 is about 930.3074760529. The cubic root of 865472 is about 95.2981216508.

It can be divided in two parts, 8 and 65472, that multiplied together give a triangular number (523776 = T₁₀₂₃).

The spelling of 865472 in words is "eight hundred sixty-five thousand, four hundred seventy-two".