865874 has 8 divisors (see below), whose sum is σ = 1334028. Its totient is φ = 421200.

The previous prime is 865871. The next prime is 865877. The reversal of 865874 is 478568.

865874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (865871) and next prime (865877).

It can be written as a sum of positive squares in 2 ways, for example, as 748225 + 117649 = 865^2 + 343^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 865874.

It is not an unprimeable number, because it can be changed into a prime (865871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5777 + ... + 5924.

2⁸⁶⁵⁸⁷⁴ is an apocalyptic number.

865874 is a deficient number, since it is larger than the sum of its proper divisors (468154).

865874 is a wasteful number, since it uses less digits than its factorization.

865874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11740.

The product of its digits is 53760, while the sum is 38.

The square root of 865874 is about 930.5235085692. The cubic root of 865874 is about 95.3128742617.

The spelling of 865874 in words is "eight hundred sixty-five thousand, eight hundred seventy-four".