505683 has 12 divisors (see below), whose sum is σ = 757848. Its totient is φ = 336960.

The previous prime is 505669. The next prime is 505691. The reversal of 505683 is 386505.

It is not a de Polignac number, because 505683 - 2⁶ = 505619 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (505613) 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 11 ways as a sum of consecutive naturals, for example, 798 + ... + 1283.

It is an arithmetic number, because the mean of its divisors is an integer number (63154).

2⁵⁰⁵⁶⁸³ is an apocalyptic number.

505683 is a deficient number, since it is larger than the sum of its proper divisors (252165).

505683 is an equidigital number, since it uses as much as digits as its factorization.

505683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096 (or 2084 counting only the distinct ones).

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

The square root of 505683 is about 711.1139149250. The cubic root of 505683 is about 79.6696271335.

The spelling of 505683 in words is "five hundred five thousand, six hundred eighty-three".