868503 has 16 divisors (see below), whose sum is σ = 1241856. Its totient is φ = 538560.

The previous prime is 868493. The next prime is 868529. The reversal of 868503 is 305868.

It is not a de Polignac number, because 868503 - 2⁴ = 868487 is a prime.

It is a super-3 number, since 3×868503³ = 1965328823336098581, which contains 333 as substring. Note that it is a super-d number also for d = 2.

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 868503.

It is not an unprimeable number, because it can be changed into a prime (868583) 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, 2676 + ... + 2982.

It is an arithmetic number, because the mean of its divisors is an integer number (77616).

2⁸⁶⁸⁵⁰³ is an apocalyptic number.

868503 is a deficient number, since it is larger than the sum of its proper divisors (373353).

868503 is a wasteful number, since it uses less digits than its factorization.

868503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 868503 is about 931.9350835761. The cubic root of 868503 is about 95.4092410037.

The spelling of 868503 in words is "eight hundred sixty-eight thousand, five hundred three".