260865 has 48 divisors (see below), whose sum is σ = 539136. Its totient is φ = 115200.

The previous prime is 260863. The next prime is 260873. The reversal of 260865 is 568062.

It is not a de Polignac number, because 260865 - 2¹ = 260863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260861) 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, 8400 + ... + 8430.

It is an arithmetic number, because the mean of its divisors is an integer number (11232).

2²⁶⁰⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

260865 is an abundant number, since it is smaller than the sum of its proper divisors (278271).

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

260865 is a wasteful number, since it uses less digits than its factorization.

260865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 67 counting only the distinct ones).

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

The square root of 260865 is about 510.7494493389. The cubic root of 260865 is about 63.8957449759.

The spelling of 260865 in words is "two hundred sixty thousand, eight hundred sixty-five".