503728 has 20 divisors (see below), whose sum is σ = 1027960. Its totient is φ = 238464.

The previous prime is 503717. The next prime is 503743. The reversal of 503728 is 827305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525 + ... + 1132.

It is an arithmetic number, because the mean of its divisors is an integer number (51398).

2⁵⁰³⁷²⁸ is an apocalyptic number.

It is an amenable number.

503728 is an abundant number, since it is smaller than the sum of its proper divisors (524232).

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

503728 is a wasteful number, since it uses less digits than its factorization.

503728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 503728 is about 709.7379798207. The cubic root of 503728 is about 79.5668253971.

The spelling of 503728 in words is "five hundred three thousand, seven hundred twenty-eight".