508989 has 16 divisors (see below), whose sum is σ = 756224. Its totient is φ = 302400.

The previous prime is 508987. The next prime is 509023. The reversal of 508989 is 989805.

It is not a de Polignac number, because 508989 - 2¹ = 508987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (47264).

2⁵⁰⁸⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

508989 is a deficient number, since it is larger than the sum of its proper divisors (247235).

508989 is a wasteful number, since it uses less digits than its factorization.

508989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 508989 is about 713.4346501257. The cubic root of 508989 is about 79.8428686572.

The spelling of 508989 in words is "five hundred eight thousand, nine hundred eighty-nine".