520930673 has 2 divisors, whose sum is σ = 520930674. Its totient is φ = 520930672.

The previous prime is 520930651. The next prime is 520930691. The reversal of 520930673 is 376039025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 450840289 + 70090384 = 21233^2 + 8372^2 .

It is a cyclic number.

It is not a de Polignac number, because 520930673 - 2¹² = 520926577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (520932673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260465336 + 260465337.

It is an arithmetic number, because the mean of its divisors is an integer number (260465337).

Almost surely, 2^520930673 is an apocalyptic number.

It is an amenable number.

520930673 is a deficient number, since it is larger than the sum of its proper divisors (1).

520930673 is an equidigital number, since it uses as much as digits as its factorization.

520930673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 520930673 is about 22823.9057349964. The cubic root of 520930673 is about 804.6246069371.

Adding to 520930673 its reverse (376039025), we get a palindrome (896969698).

The spelling of 520930673 in words is "five hundred twenty million, nine hundred thirty thousand, six hundred seventy-three".