868218 has 16 divisors (see below), whose sum is σ = 1870176. Its totient is φ = 267120.

The previous prime is 868211. The next prime is 868229. The reversal of 868218 is 812868.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (868211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5488 + ... + 5643.

It is an arithmetic number, because the mean of its divisors is an integer number (116886).

2⁸⁶⁸²¹⁸ is an apocalyptic number.

868218 is an abundant number, since it is smaller than the sum of its proper divisors (1001958).

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

868218 is a wasteful number, since it uses less digits than its factorization.

868218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11149.

The product of its digits is 6144, while the sum is 33.

The square root of 868218 is about 931.7821633837. The cubic root of 868218 is about 95.3988036540.

The spelling of 868218 in words is "eight hundred sixty-eight thousand, two hundred eighteen".