868862 has 4 divisors (see below), whose sum is σ = 1303296. Its totient is φ = 434430.

The previous prime is 868849. The next prime is 868867. The reversal of 868862 is 268868.

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 (868867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217214 + ... + 217217.

It is an arithmetic number, because the mean of its divisors is an integer number (325824).

2⁸⁶⁸⁸⁶² is an apocalyptic number.

868862 is a deficient number, since it is larger than the sum of its proper divisors (434434).

868862 is a wasteful number, since it uses less digits than its factorization.

868862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434433.

The product of its digits is 36864, while the sum is 38.

The square root of 868862 is about 932.1276736585. The cubic root of 868862 is about 95.4223851529.

The spelling of 868862 in words is "eight hundred sixty-eight thousand, eight hundred sixty-two".