520966 has 4 divisors (see below), whose sum is σ = 781452. Its totient is φ = 260482.

The previous prime is 520963. The next prime is 520967. The reversal of 520966 is 669025.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130240 + ... + 130243.

It is an arithmetic number, because the mean of its divisors is an integer number (195363).

2⁵²⁰⁹⁶⁶ is an apocalyptic number.

520966 is a deficient number, since it is larger than the sum of its proper divisors (260486).

520966 is a wasteful number, since it uses less digits than its factorization.

520966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260485.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 520966 is about 721.7797447975. The cubic root of 520966 is about 80.4642795110.

The spelling of 520966 in words is "five hundred twenty thousand, nine hundred sixty-six".