868266 has 32 divisors (see below), whose sum is σ = 2206080. Its totient is φ = 247968.

The previous prime is 868249. The next prime is 868267. The reversal of 868266 is 662868.

It is a self number, because there is not a number n which added to its sum of digits gives 868266.

It is not an unprimeable number, because it can be changed into a prime (868267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (68940).

2⁸⁶⁸²⁶⁶ is an apocalyptic number.

868266 is an abundant number, since it is smaller than the sum of its proper divisors (1337814).

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

868266 is a wasteful number, since it uses less digits than its factorization.

868266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315 (or 2309 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 868266 is about 931.8079201209. The cubic root of 868266 is about 95.4005616833.

The spelling of 868266 in words is "eight hundred sixty-eight thousand, two hundred sixty-six".