520727 has 4 divisors (see below), whose sum is σ = 551376. Its totient is φ = 490080.

The previous prime is 520721. The next prime is 520747. The reversal of 520727 is 727025.

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 520727 - 2¹⁰ = 519703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520721) 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, 15299 + ... + 15332.

It is an arithmetic number, because the mean of its divisors is an integer number (137844).

2⁵²⁰⁷²⁷ is an apocalyptic number.

520727 is a deficient number, since it is larger than the sum of its proper divisors (30649).

520727 is a wasteful number, since it uses less digits than its factorization.

520727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30648.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 520727 is about 721.6141628322. The cubic root of 520727 is about 80.4519729469.

The spelling of 520727 in words is "five hundred twenty thousand, seven hundred twenty-seven".