650723317 has 2 divisors, whose sum is σ = 650723318. Its totient is φ = 650723316.

The previous prime is 650723309. The next prime is 650723323. The reversal of 650723317 is 713327056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650556036 + 167281 = 25506^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 650723317 - 2³ = 650723309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650723327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325361658 + 325361659.

It is an arithmetic number, because the mean of its divisors is an integer number (325361659).

Almost surely, 2^650723317 is an apocalyptic number.

It is an amenable number.

650723317 is a deficient number, since it is larger than the sum of its proper divisors (1).

650723317 is an equidigital number, since it uses as much as digits as its factorization.

650723317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 650723317 is about 25509.2790372445. The cubic root of 650723317 is about 866.5603018545.

The spelling of 650723317 in words is "six hundred fifty million, seven hundred twenty-three thousand, three hundred seventeen".