520683 has 4 divisors (see below), whose sum is σ = 694248. Its totient is φ = 347120.

The previous prime is 520679. The next prime is 520691. The reversal of 520683 is 386025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520683 - 2² = 520679 is a prime.

It is a super-2 number, since 2×520683² = 542221572978, which contains 22 as substring.

It is a D-number.

520683 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (520633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86778 + ... + 86783.

It is an arithmetic number, because the mean of its divisors is an integer number (173562).

2⁵²⁰⁶⁸³ is an apocalyptic number.

520683 is a deficient number, since it is larger than the sum of its proper divisors (173565).

520683 is a wasteful number, since it uses less digits than its factorization.

520683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173564.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 520683 is about 721.5836749816. The cubic root of 520683 is about 80.4497068929.

The spelling of 520683 in words is "five hundred twenty thousand, six hundred eighty-three".