520767 has 12 divisors (see below), whose sum is σ = 810264. Its totient is φ = 320400.

The previous prime is 520763. The next prime is 520787. The reversal of 520767 is 767025.

It is not a de Polignac number, because 520767 - 2² = 520763 is a prime.

It is an Ulam number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 520767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2109 + ... + 2342.

It is an arithmetic number, because the mean of its divisors is an integer number (67522).

2⁵²⁰⁷⁶⁷ is an apocalyptic number.

520767 is a deficient number, since it is larger than the sum of its proper divisors (289497).

520767 is a wasteful number, since it uses less digits than its factorization.

520767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470 (or 4467 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 520767 is about 721.6418779422. The cubic root of 520767 is about 80.4540328852.

The spelling of 520767 in words is "five hundred twenty thousand, seven hundred sixty-seven".