504039 has 4 divisors (see below), whose sum is σ = 672056. Its totient is φ = 336024.

The previous prime is 504017. The next prime is 504047. The reversal of 504039 is 930405.

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

It is not a de Polignac number, because 504039 - 2⁷ = 503911 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504139) 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, 84004 + ... + 84009.

It is an arithmetic number, because the mean of its divisors is an integer number (168014).

2⁵⁰⁴⁰³⁹ is an apocalyptic number.

504039 is a deficient number, since it is larger than the sum of its proper divisors (168017).

504039 is a wasteful number, since it uses less digits than its factorization.

504039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168016.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 504039 is about 709.9570409539. The cubic root of 504039 is about 79.5831967932.

The spelling of 504039 in words is "five hundred four thousand, thirty-nine".