868023 has 16 divisors (see below), whose sum is σ = 1385440. Its totient is φ = 533952.

The previous prime is 868019. The next prime is 868033. The reversal of 868023 is 320868.

It is not a de Polignac number, because 868023 - 2² = 868019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

868023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886 + ... + 1587.

It is an arithmetic number, because the mean of its divisors is an integer number (86590).

2⁸⁶⁸⁰²³ is an apocalyptic number.

868023 is a deficient number, since it is larger than the sum of its proper divisors (517417).

868023 is a wasteful number, since it uses less digits than its factorization.

868023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495 (or 2489 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 868023 is about 931.6775193166. The cubic root of 868023 is about 95.3916609933.

The spelling of 868023 in words is "eight hundred sixty-eight thousand, twenty-three".