865260 has 144 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 190080.

The previous prime is 865259. The next prime is 865261. The reversal of 865260 is 62568.

865260 is a `hidden beast` number, since 8 + 652 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (865259) and next prime (865261).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 865260.

It is not an unprimeable number, because it can be changed into a prime (865261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37609 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2⁸⁶⁵²⁶⁰ 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 865260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572480).

865260 is an abundant number, since it is smaller than the sum of its proper divisors (2279700).

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

865260 is a wasteful number, since it uses less digits than its factorization.

865260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 865260 is about 930.1935282510. The cubic root of 865260 is about 95.2903398271.

The spelling of 865260 in words is "eight hundred sixty-five thousand, two hundred sixty".