868535 has 4 divisors (see below), whose sum is σ = 1042248. Its totient is φ = 694824.

The previous prime is 868531. The next prime is 868537. The reversal of 868535 is 535868.

868535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 868535 - 2² = 868531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 868495 and 868504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86849 + ... + 86858.

It is an arithmetic number, because the mean of its divisors is an integer number (260562).

2⁸⁶⁸⁵³⁵ is an apocalyptic number.

868535 is a deficient number, since it is larger than the sum of its proper divisors (173713).

868535 is a wasteful number, since it uses less digits than its factorization.

868535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173712.

The product of its digits is 28800, while the sum is 35.

The square root of 868535 is about 931.9522519958. The cubic root of 868535 is about 95.4104127740.

The spelling of 868535 in words is "eight hundred sixty-eight thousand, five hundred thirty-five".