520737 has 16 divisors (see below), whose sum is σ = 803712. Its totient is φ = 293760.

The previous prime is 520721. The next prime is 520747. The reversal of 520737 is 737025.

It is not a de Polignac number, because 520737 - 2⁴ = 520721 is a prime.

520737 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (520717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2787 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (50232).

2⁵²⁰⁷³⁷ is an apocalyptic number.

It is an amenable number.

520737 is a deficient number, since it is larger than the sum of its proper divisors (282975).

520737 is a wasteful number, since it uses less digits than its factorization.

520737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328.

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 520737 is about 721.6210917095. The cubic root of 520737 is about 80.4524879414.

The spelling of 520737 in words is "five hundred twenty thousand, seven hundred thirty-seven".