865214 has 16 divisors (see below), whose sum is σ = 1548288. Its totient is φ = 354552.

The previous prime is 865213. The next prime is 865217. The reversal of 865214 is 412568.

It is a Curzon number.

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 865214.

It is not an unprimeable number, because it can be changed into a prime (865211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (96768).

2⁸⁶⁵²¹⁴ is an apocalyptic number.

865214 is a deficient number, since it is larger than the sum of its proper divisors (683074).

865214 is a wasteful number, since it uses less digits than its factorization.

865214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719.

The product of its digits is 1920, while the sum is 26.

The square root of 865214 is about 930.1688018849. The cubic root of 865214 is about 95.2886511504.

The spelling of 865214 in words is "eight hundred sixty-five thousand, two hundred fourteen".