868506 has 8 divisors (see below), whose sum is σ = 1737024. Its totient is φ = 289500.

The previous prime is 868493. The next prime is 868529. The reversal of 868506 is 605868.

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

868506 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72370 + ... + 72381.

It is an arithmetic number, because the mean of its divisors is an integer number (217128).

2⁸⁶⁸⁵⁰⁶ is an apocalyptic number.

868506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

868506 is a wasteful number, since it uses less digits than its factorization.

868506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144756.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 868506 is about 931.9366931289. The cubic root of 868506 is about 95.4093508584.

The spelling of 868506 in words is "eight hundred sixty-eight thousand, five hundred six".