650740613 has 2 divisors, whose sum is σ = 650740614. Its totient is φ = 650740612.

The previous prime is 650740591. The next prime is 650740621. The reversal of 650740613 is 316047056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 379743169 + 270997444 = 19487^2 + 16462^2 .

It is a cyclic number.

It is not a de Polignac number, because 650740613 - 2¹⁸ = 650478469 is a prime.

It is equal to p_33830087 and since 650740613 and 33830087 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 650740613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650740213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325370306 + 325370307.

It is an arithmetic number, because the mean of its divisors is an integer number (325370307).

Almost surely, 2^650740613 is an apocalyptic number.

It is an amenable number.

650740613 is a deficient number, since it is larger than the sum of its proper divisors (1).

650740613 is an equidigital number, since it uses as much as digits as its factorization.

650740613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 650740613 is about 25509.6180488850. The cubic root of 650740613 is about 866.5679794105.

Adding to 650740613 its reverse (316047056), we get a palindrome (966787669).

The spelling of 650740613 in words is "six hundred fifty million, seven hundred forty thousand, six hundred thirteen".