502989 has 4 divisors (see below), whose sum is σ = 670656. Its totient is φ = 335324.

The previous prime is 502973. The next prime is 503003. The reversal of 502989 is 989205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 502989 - 2⁴ = 502973 is a prime.

It is a D-number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502919) 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, 83829 + ... + 83834.

It is an arithmetic number, because the mean of its divisors is an integer number (167664).

2⁵⁰²⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

502989 is a deficient number, since it is larger than the sum of its proper divisors (167667).

502989 is a wasteful number, since it uses less digits than its factorization.

502989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167666.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 502989 is about 709.2171740729. The cubic root of 502989 is about 79.5278965428.

The spelling of 502989 in words is "five hundred two thousand, nine hundred eighty-nine".