875868 has 24 divisors (see below), whose sum is σ = 2335872. Its totient is φ = 250224.

The previous prime is 875851. The next prime is 875893. The reversal of 875868 is 868578.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 875868.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5130 + ... + 5297.

It is an arithmetic number, because the mean of its divisors is an integer number (97328).

2⁸⁷⁵⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

875868 is an abundant number, since it is smaller than the sum of its proper divisors (1460004).

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

875868 is a wasteful number, since it uses less digits than its factorization.

875868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10441 (or 10439 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 875868 is about 935.8781972030. The cubic root of 875868 is about 95.6781758152.

Subtracting from 875868 its sum of digits (42), we obtain a triangular number (875826 = T₁₃₂₃).

The spelling of 875868 in words is "eight hundred seventy-five thousand, eight hundred sixty-eight".