868756 has 48 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 332640.

The previous prime is 868741. The next prime is 868771. The reversal of 868756 is 657868.

868756 = 96² + 97² + ... + 151².

It is an interprime number because it is at equal distance from previous prime (868741) and next prime (868771).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12201 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (40320).

2⁸⁶⁸⁷⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967680).

868756 is an abundant number, since it is smaller than the sum of its proper divisors (1066604).

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

868756 is a wasteful number, since it uses less digits than its factorization.

868756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 122 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 868756 is about 932.0708127605. The cubic root of 868756 is about 95.4185045274.

The spelling of 868756 in words is "eight hundred sixty-eight thousand, seven hundred fifty-six".