868456 has 8 divisors (see below), whose sum is σ = 1628370. Its totient is φ = 434224.

The previous prime is 868453. The next prime is 868459. The reversal of 868456 is 654868.

It is an interprime number because it is at equal distance from previous prime (868453) and next prime (868459).

It can be written as a sum of positive squares in only one way, i.e., 756900 + 111556 = 870^2 + 334^2 .

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 (868451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54271 + ... + 54286.

2⁸⁶⁸⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

868456 is a deficient number, since it is larger than the sum of its proper divisors (759914).

868456 is a wasteful number, since it uses less digits than its factorization.

868456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108563 (or 108559 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 868456 is about 931.9098668863. The cubic root of 868456 is about 95.4075199138.

The spelling of 868456 in words is "eight hundred sixty-eight thousand, four hundred fifty-six".