868775 has 24 divisors (see below), whose sum is σ = 1190400. Its totient is φ = 626400.

The previous prime is 868771. The next prime is 868783. The reversal of 868775 is 577868.

868775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 868775 - 2² = 868771 is a prime.

It is an Ulam number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14696 + ... + 14754.

It is an arithmetic number, because the mean of its divisors is an integer number (49600).

2⁸⁶⁸⁷⁷⁵ is an apocalyptic number.

868775 is a deficient number, since it is larger than the sum of its proper divisors (321625).

868775 is a wasteful number, since it uses less digits than its factorization.

868775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 114 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The square root of 868775 is about 932.0810050634. The cubic root of 868775 is about 95.4192001344.

The spelling of 868775 in words is "eight hundred sixty-eight thousand, seven hundred seventy-five".