500985 has 20 divisors (see below), whose sum is σ = 898788. Its totient is φ = 266976.

The previous prime is 500977. The next prime is 501001. The reversal of 500985 is 589005.

It can be written as a sum of positive squares in 2 ways, for example, as 281961 + 219024 = 531^2 + 468^2 .

It is not a de Polignac number, because 500985 - 2³ = 500977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a nialpdrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 500985.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 214 + ... + 1023.

2⁵⁰⁰⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

500985 is a deficient number, since it is larger than the sum of its proper divisors (397803).

500985 is a wasteful number, since it uses less digits than its factorization.

500985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 500985 is about 707.8029386771. The cubic root of 500985 is about 79.4221380784.

It can be divided in two parts, 500 and 985, that added together give a triangular number (1485 = T₅₄).

The spelling of 500985 in words is "five hundred thousand, nine hundred eighty-five".