865862 has 4 divisors (see below), whose sum is σ = 1298796. Its totient is φ = 432930.

The previous prime is 865859. The next prime is 865867. The reversal of 865862 is 268568.

865862 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216464 + ... + 216467.

It is an arithmetic number, because the mean of its divisors is an integer number (324699).

2⁸⁶⁵⁸⁶² is an apocalyptic number.

865862 is a deficient number, since it is larger than the sum of its proper divisors (432934).

865862 is a wasteful number, since it uses less digits than its factorization.

865862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432933.

The product of its digits is 23040, while the sum is 35.

The square root of 865862 is about 930.5170605636. The cubic root of 865862 is about 95.3124339514.

The spelling of 865862 in words is "eight hundred sixty-five thousand, eight hundred sixty-two".