4243306393 has 2 divisors, whose sum is σ = 4243306394. Its totient is φ = 4243306392.

The previous prime is 4243306351. The next prime is 4243306411. The reversal of 4243306393 is 3936033424.

4243306393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3957290649 + 286015744 = 62907^2 + 16912^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243306393 - 2²⁵ = 4209751961 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243301393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121653196 + 2121653197.

It is an arithmetic number, because the mean of its divisors is an integer number (2121653197).

Almost surely, 2^4243306393 is an apocalyptic number.

It is an amenable number.

4243306393 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243306393 is an equidigital number, since it uses as much as digits as its factorization.

4243306393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 37.

The square root of 4243306393 is about 65140.6662001549. Note that the first 3 decimals coincide. The cubic root of 4243306393 is about 1618.9550738772.

The spelling of 4243306393 in words is "four billion, two hundred forty-three million, three hundred six thousand, three hundred ninety-three".