865368 has 96 divisors (see below), whose sum is σ = 2864160. Its totient is φ = 230400.

The previous prime is 865363. The next prime is 865379. The reversal of 865368 is 863568.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 865368.

It is not an unprimeable number, because it can be changed into a prime (865363) by changing a digit.

865368 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 23 ways as a sum of consecutive naturals, for example, 8518 + ... + 8618.

It is an arithmetic number, because the mean of its divisors is an integer number (29835).

2⁸⁶⁵³⁶⁸ 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 865368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432080).

865368 is an abundant number, since it is smaller than the sum of its proper divisors (1998792).

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

865368 is a wasteful number, since it uses less digits than its factorization.

865368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 130 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 865368 is about 930.2515788753. The cubic root of 865368 is about 95.2943043112.

The spelling of 865368 in words is "eight hundred sixty-five thousand, three hundred sixty-eight".