865168 has 20 divisors (see below), whose sum is σ = 1749888. Its totient is φ = 413600.

The previous prime is 865159. The next prime is 865177. The reversal of 865168 is 861568.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (865159) and next prime (865177).

It is an unprimeable number.

865168 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 3 ways as a sum of consecutive naturals, for example, 808 + ... + 1543.

2⁸⁶⁵¹⁶⁸ is an apocalyptic number.

It is an amenable number.

865168 is an abundant number, since it is smaller than the sum of its proper divisors (884720).

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

865168 is a wasteful number, since it uses less digits than its factorization.

865168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2376 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 865168 is about 930.1440748615. The cubic root of 865168 is about 95.2869624138.

Subtracting from 865168 its reverse (861568), we obtain a square (3600 = 60²).

The spelling of 865168 in words is "eight hundred sixty-five thousand, one hundred sixty-eight".