650216393 has 2 divisors, whose sum is σ = 650216394. Its totient is φ = 650216392.

The previous prime is 650216387. The next prime is 650216447. The reversal of 650216393 is 393612056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358079929 + 292136464 = 18923^2 + 17092^2 .

It is a cyclic number.

It is not a de Polignac number, because 650216393 - 2¹⁴ = 650200009 is a prime.

It is not a weakly prime, because it can be changed into another prime (650216353) 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, 325108196 + 325108197.

It is an arithmetic number, because the mean of its divisors is an integer number (325108197).

Almost surely, 2^650216393 is an apocalyptic number.

It is an amenable number.

650216393 is a deficient number, since it is larger than the sum of its proper divisors (1).

650216393 is an equidigital number, since it uses as much as digits as its factorization.

650216393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 650216393 is about 25499.3410307012. The cubic root of 650216393 is about 866.3352218954.

The spelling of 650216393 in words is "six hundred fifty million, two hundred sixteen thousand, three hundred ninety-three".