649958713 has 2 divisors, whose sum is σ = 649958714. Its totient is φ = 649958712.

The previous prime is 649958689. The next prime is 649958747. The reversal of 649958713 is 317859946.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403688464 + 246270249 = 20092^2 + 15693^2 .

It is a cyclic number.

It is not a de Polignac number, because 649958713 - 2⁵ = 649958681 is a prime.

It is not a weakly prime, because it can be changed into another prime (649958753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324979356 + 324979357.

It is an arithmetic number, because the mean of its divisors is an integer number (324979357).

Almost surely, 2^649958713 is an apocalyptic number.

It is an amenable number.

649958713 is a deficient number, since it is larger than the sum of its proper divisors (1).

649958713 is an equidigital number, since it uses as much as digits as its factorization.

649958713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 52.

The square root of 649958713 is about 25494.2878504186. The cubic root of 649958713 is about 866.2207642275.

The spelling of 649958713 in words is "six hundred forty-nine million, nine hundred fifty-eight thousand, seven hundred thirteen".