520784713 has 2 divisors, whose sum is σ = 520784714. Its totient is φ = 520784712.

The previous prime is 520784711. The next prime is 520784741. The reversal of 520784713 is 317487025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 483428169 + 37356544 = 21987^2 + 6112^2 .

It is a cyclic number.

It is not a de Polignac number, because 520784713 - 2¹ = 520784711 is a prime.

Together with 520784711, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (520784711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260392356 + 260392357.

It is an arithmetic number, because the mean of its divisors is an integer number (260392357).

Almost surely, 2^520784713 is an apocalyptic number.

It is an amenable number.

520784713 is a deficient number, since it is larger than the sum of its proper divisors (1).

520784713 is an equidigital number, since it uses as much as digits as its factorization.

520784713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 520784713 is about 22820.7079863882. The cubic root of 520784713 is about 804.5494504372.

The spelling of 520784713 in words is "five hundred twenty million, seven hundred eighty-four thousand, seven hundred thirteen".