504387 has 20 divisors (see below), whose sum is σ = 813120. Its totient is φ = 309744.

The previous prime is 504379. The next prime is 504389. The reversal of 504387 is 783405.

It is not a de Polignac number, because 504387 - 2³ = 504379 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 504387.

It is not an unprimeable number, because it can be changed into a prime (504389) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 814 + ... + 1292.

It is an arithmetic number, because the mean of its divisors is an integer number (40656).

2⁵⁰⁴³⁸⁷ is an apocalyptic number.

504387 is a deficient number, since it is larger than the sum of its proper divisors (308733).

504387 is a wasteful number, since it uses less digits than its factorization.

504387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 504387 is about 710.2020839170. The cubic root of 504387 is about 79.6015079300.

504387 divided by its sum of digits (27) gives a palindrome (18681).

The spelling of 504387 in words is "five hundred four thousand, three hundred eighty-seven".