504781 has 8 divisors (see below), whose sum is σ = 558144. Its totient is φ = 454080.

The previous prime is 504767. The next prime is 504787. The reversal of 504781 is 187405.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 504781 - 2⁹ = 504269 is a prime.

It is a super-2 number, since 2×504781² = 509607715922, which contains 22 as substring.

504781 is a lucky number.

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 7 ways as a sum of consecutive naturals, for example, 255 + ... + 1036.

It is an arithmetic number, because the mean of its divisors is an integer number (69768).

2⁵⁰⁴⁷⁸¹ is an apocalyptic number.

It is an amenable number.

504781 is a deficient number, since it is larger than the sum of its proper divisors (53363).

504781 is a wasteful number, since it uses less digits than its factorization.

504781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 504781 is about 710.4794156061. The cubic root of 504781 is about 79.6222293412.

The spelling of 504781 in words is "five hundred four thousand, seven hundred eighty-one".