868507 has 4 divisors (see below), whose sum is σ = 870696. Its totient is φ = 866320.

The previous prime is 868493. The next prime is 868529. The reversal of 868507 is 705868.

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 868507 - 2⁷ = 868379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868537) 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, 313 + ... + 1354.

It is an arithmetic number, because the mean of its divisors is an integer number (217674).

2⁸⁶⁸⁵⁰⁷ is an apocalyptic number.

868507 is a deficient number, since it is larger than the sum of its proper divisors (2189).

868507 is a wasteful number, since it uses less digits than its factorization.

868507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 868507 is about 931.9372296459. The cubic root of 868507 is about 95.4093874765.

The spelling of 868507 in words is "eight hundred sixty-eight thousand, five hundred seven".