503029989 has 48 divisors (see below), whose sum is σ = 910825344. Its totient is φ = 259891200.

The previous prime is 503029981. The next prime is 503029999. The reversal of 503029989 is 989920305.

It is not a de Polignac number, because 503029989 - 2³ = 503029981 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503029981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131869 + ... + 135629.

It is an arithmetic number, because the mean of its divisors is an integer number (18975528).

Almost surely, 2^503029989 is an apocalyptic number.

It is an amenable number.

503029989 is a deficient number, since it is larger than the sum of its proper divisors (407795355).

503029989 is a wasteful number, since it uses less digits than its factorization.

503029989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978 (or 3975 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 503029989 is about 22428.3300537512. The cubic root of 503029989 is about 795.3005674934.

The spelling of 503029989 in words is "five hundred three million, twenty-nine thousand, nine hundred eighty-nine".