865230 has 32 divisors (see below), whose sum is σ = 2101248. Its totient is φ = 228000.

The previous prime is 865217. The next prime is 865231. The reversal of 865230 is 32568.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 865230.

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 865230.

It is not an unprimeable number, because it can be changed into a prime (865231) 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, 4435 + ... + 4625.

It is an arithmetic number, because the mean of its divisors is an integer number (65664).

2⁸⁶⁵²³⁰ is an apocalyptic number.

865230 is an abundant number, since it is smaller than the sum of its proper divisors (1236018).

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

865230 is a wasteful number, since it uses less digits than its factorization.

865230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 865230 is about 930.1774024346. The cubic root of 865230 is about 95.2892385230.

Adding to 865230 its reverse (32568), we get a palindrome (897798).

It can be divided in two parts, 8652 and 30, that multiplied together give a triangular number (259560 = T₇₂₀).

The spelling of 865230 in words is "eight hundred sixty-five thousand, two hundred thirty".