868917 has 24 divisors (see below), whose sum is σ = 1411776. Its totient is φ = 473088.

The previous prime is 868909. The next prime is 868937. The reversal of 868917 is 719868.

It is not a de Polignac number, because 868917 - 2³ = 868909 is a prime.

It is a plaindrome in base 13 and base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868917.

It is not an unprimeable number, because it can be changed into a prime (868937) 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, 3253 + ... + 3509.

It is an arithmetic number, because the mean of its divisors is an integer number (58824).

2⁸⁶⁸⁹¹⁷ is an apocalyptic number.

It is an amenable number.

868917 is a deficient number, since it is larger than the sum of its proper divisors (542859).

868917 is a wasteful number, since it uses less digits than its factorization.

868917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 290 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 868917 is about 932.1571755879. The cubic root of 868917 is about 95.4243985607.

The spelling of 868917 in words is "eight hundred sixty-eight thousand, nine hundred seventeen".