613257713 has 2 divisors, whose sum is σ = 613257714. Its totient is φ = 613257712.

The previous prime is 613257707. The next prime is 613257731. The reversal of 613257713 is 317752316.

Together with next prime (613257731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 607721104 + 5536609 = 24652^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 613257713 - 2¹² = 613253617 is a prime.

It is not a weakly prime, because it can be changed into another prime (613257773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306628856 + 306628857.

It is an arithmetic number, because the mean of its divisors is an integer number (306628857).

Almost surely, 2^613257713 is an apocalyptic number.

It is an amenable number.

613257713 is a deficient number, since it is larger than the sum of its proper divisors (1).

613257713 is an equidigital number, since it uses as much as digits as its factorization.

613257713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 35.

The square root of 613257713 is about 24764.0407244052. The cubic root of 613257713 is about 849.5996790815.

The spelling of 613257713 in words is "six hundred thirteen million, two hundred fifty-seven thousand, seven hundred thirteen".