504728 has 16 divisors (see below), whose sum is σ = 1081680. Its totient is φ = 216288.

The previous prime is 504727. The next prime is 504767. The reversal of 504728 is 827405.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 504697 and 504706.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 504728.

It is not an unprimeable number, because it can be changed into a prime (504727) 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 3 ways as a sum of consecutive naturals, for example, 4451 + ... + 4562.

It is an arithmetic number, because the mean of its divisors is an integer number (67605).

2⁵⁰⁴⁷²⁸ is an apocalyptic number.

It is an amenable number.

504728 is an abundant number, since it is smaller than the sum of its proper divisors (576952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

504728 is a wasteful number, since it uses less digits than its factorization.

504728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9026 (or 9022 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 504728 is about 710.4421158687. The cubic root of 504728 is about 79.6194425711.

The spelling of 504728 in words is "five hundred four thousand, seven hundred twenty-eight".