500999 has 4 divisors (see below), whose sum is σ = 507936. Its totient is φ = 494064.

The previous prime is 500977. The next prime is 501001. The reversal of 500999 is 999005.

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

It is a de Polignac number, because none of the positive numbers 2^k-500999 is a prime.

It is a Duffinian number.

500999 is a modest number, since divided by 999 gives 500 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500909) 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, 3359 + ... + 3504.

It is an arithmetic number, because the mean of its divisors is an integer number (126984).

2⁵⁰⁰⁹⁹⁹ is an apocalyptic number.

500999 is a deficient number, since it is larger than the sum of its proper divisors (6937).

500999 is an equidigital number, since it uses as much as digits as its factorization.

500999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6936.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 500999 is about 707.8128283664. The cubic root of 500999 is about 79.4228778874.

It can be divided in two parts, 500 and 999, that multiplied together give a triangular number (499500 = T₉₉₉).

The spelling of 500999 in words is "five hundred thousand, nine hundred ninety-nine".