520769 has 8 divisors (see below), whose sum is σ = 546048. Its totient is φ = 496080.

The previous prime is 520763. The next prime is 520787. The reversal of 520769 is 967025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520769 - 2¹² = 516673 is a prime.

It is a super-3 number, since 3×520769³ = 423698207333749827, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a nialpdrome in base 9.

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 7 ways as a sum of consecutive naturals, for example, 3239 + ... + 3395.

It is an arithmetic number, because the mean of its divisors is an integer number (68256).

2⁵²⁰⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

520769 is a deficient number, since it is larger than the sum of its proper divisors (25279).

520769 is a wasteful number, since it uses less digits than its factorization.

520769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 520769 is about 721.6432636698. The cubic root of 520769 is about 80.4541358794.

The spelling of 520769 in words is "five hundred twenty thousand, seven hundred sixty-nine".