520964 has 6 divisors (see below), whose sum is σ = 911694. Its totient is φ = 260480.

The previous prime is 520963. The next prime is 520967. The reversal of 520964 is 469025.

It can be written as a sum of positive squares in only one way, i.e., 462400 + 58564 = 680^2 + 242^2 .

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65117 + ... + 65124.

It is an arithmetic number, because the mean of its divisors is an integer number (151949).

2⁵²⁰⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

520964 is a deficient number, since it is larger than the sum of its proper divisors (390730).

520964 is a wasteful number, since it uses less digits than its factorization.

520964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130245 (or 130243 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 520964 is about 721.7783593320. The cubic root of 520964 is about 80.4641765428.

Adding to 520964 its reverse (469025), we get a palindrome (989989).

The spelling of 520964 in words is "five hundred twenty thousand, nine hundred sixty-four".