868806 has 40 divisors (see below), whose sum is σ = 2021184. Its totient is φ = 278640.

The previous prime is 868801. The next prime is 868817. The reversal of 868806 is 608868.

It is a Curzon number.

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 868806.

It is not an unprimeable number, because it can be changed into a prime (868801) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4936 + ... + 5108.

2⁸⁶⁸⁸⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010592).

868806 is an abundant number, since it is smaller than the sum of its proper divisors (1152378).

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

868806 is a wasteful number, since it uses less digits than its factorization.

868806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 868806 is about 932.0976343710. The cubic root of 868806 is about 95.4203350505.

The spelling of 868806 in words is "eight hundred sixty-eight thousand, eight hundred six".