500865 has 8 divisors (see below), whose sum is σ = 801408. Its totient is φ = 267120.

The previous prime is 500861. The next prime is 500873. The reversal of 500865 is 568005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 500865 - 2² = 500861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (500861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16681 + ... + 16710.

It is an arithmetic number, because the mean of its divisors is an integer number (100176).

2⁵⁰⁰⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

500865 is a deficient number, since it is larger than the sum of its proper divisors (300543).

500865 is a wasteful number, since it uses less digits than its factorization.

500865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33399.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 500865 is about 707.7181642434. The cubic root of 500865 is about 79.4157962933.

The spelling of 500865 in words is "five hundred thousand, eight hundred sixty-five".