503685 has 64 divisors (see below), whose sum is σ = 1128960. Its totient is φ = 207360.

The previous prime is 503663. The next prime is 503707. The reversal of 503685 is 586305.

503685 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (503663) and next prime (503707).

It is not a de Polignac number, because 503685 - 2⁵ = 503653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

503685 is strictly pandigital in base 7.

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 503685.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12265 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (17640).

2⁵⁰³⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

503685 is an abundant number, since it is smaller than the sum of its proper divisors (625275).

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

503685 is a wasteful number, since it uses less digits than its factorization.

503685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 503685 is about 709.7076863047. The cubic root of 503685 is about 79.5645612977.

The spelling of 503685 in words is "five hundred three thousand, six hundred eighty-five".