504861 has 16 divisors (see below), whose sum is σ = 796800. Its totient is φ = 278208.

The previous prime is 504857. The next prime is 504871. The reversal of 504861 is 168405.

It is not a de Polignac number, because 504861 - 2² = 504857 is a prime.

504861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504821) 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 15 ways as a sum of consecutive naturals, for example, 195 + ... + 1023.

It is an arithmetic number, because the mean of its divisors is an integer number (49800).

2⁵⁰⁴⁸⁶¹ is an apocalyptic number.

It is an amenable number.

504861 is a deficient number, since it is larger than the sum of its proper divisors (291939).

504861 is a wasteful number, since it uses less digits than its factorization.

504861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 504861 is about 710.5357133881. The cubic root of 504861 is about 79.6264354173.

The spelling of 504861 in words is "five hundred four thousand, eight hundred sixty-one".