504789 has 4 divisors (see below), whose sum is σ = 673056. Its totient is φ = 336524.

The previous prime is 504787. The next prime is 504797. The reversal of 504789 is 987405.

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 504789 - 2¹ = 504787 is a prime.

It is a D-number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84129 + ... + 84134.

It is an arithmetic number, because the mean of its divisors is an integer number (168264).

2⁵⁰⁴⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

504789 is a deficient number, since it is larger than the sum of its proper divisors (168267).

504789 is a wasteful number, since it uses less digits than its factorization.

504789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168266.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 504789 is about 710.4850455851. The cubic root of 504789 is about 79.6226499688.

The spelling of 504789 in words is "five hundred four thousand, seven hundred eighty-nine".