9843850213 has 2 divisors, whose sum is σ = 9843850214. Its totient is φ = 9843850212.

The previous prime is 9843850193. The next prime is 9843850217. The reversal of 9843850213 is 3120583489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8979078564 + 864771649 = 94758^2 + 29407^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9843850213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9843850213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9843850217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4921925106 + 4921925107.

It is an arithmetic number, because the mean of its divisors is an integer number (4921925107).

Almost surely, 2^9843850213 is an apocalyptic number.

It is an amenable number.

9843850213 is a deficient number, since it is larger than the sum of its proper divisors (1).

9843850213 is an equidigital number, since it uses as much as digits as its factorization.

9843850213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 9843850213 is about 99216.1791896866. The cubic root of 9843850213 is about 2143.1619932551.

The spelling of 9843850213 in words is "nine billion, eight hundred forty-three million, eight hundred fifty thousand, two hundred thirteen".