869365 has 16 divisors (see below), whose sum is σ = 1215360. Its totient is φ = 584640.

The previous prime is 869339. The next prime is 869369. The reversal of 869365 is 563968.

It is a de Polignac number, because none of the positive numbers 2^k-869365 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1855 + ... + 2275.

It is an arithmetic number, because the mean of its divisors is an integer number (75960).

2⁸⁶⁹³⁶⁵ is an apocalyptic number.

869365 is the 590-th heptagonal number.

It is an amenable number.

869365 is a deficient number, since it is larger than the sum of its proper divisors (345995).

869365 is a wasteful number, since it uses less digits than its factorization.

869365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its digits is 38880, while the sum is 37.

The square root of 869365 is about 932.3974474440. The cubic root of 869365 is about 95.4407955183.

The spelling of 869365 in words is "eight hundred sixty-nine thousand, three hundred sixty-five".