868264 has 8 divisors (see below), whose sum is σ = 1628010. Its totient is φ = 434128.

The previous prime is 868249. The next prime is 868267. The reversal of 868264 is 462868.

It can be written as a sum of positive squares in only one way, i.e., 864900 + 3364 = 930^2 + 58^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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

868264 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54259 + ... + 54274.

2⁸⁶⁸²⁶⁴ is an apocalyptic number.

It is an amenable number.

868264 is a deficient number, since it is larger than the sum of its proper divisors (759746).

868264 is a wasteful number, since it uses less digits than its factorization.

868264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108539 (or 108535 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 868264 is about 931.8068469377. The cubic root of 868264 is about 95.4004884334.

The spelling of 868264 in words is "eight hundred sixty-eight thousand, two hundred sixty-four".