8343193393 has 2 divisors, whose sum is σ = 8343193394. Its totient is φ = 8343193392.

The previous prime is 8343193373. The next prime is 8343193403. The reversal of 8343193393 is 3933913438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6562944144 + 1780249249 = 81012^2 + 42193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8343193393 is a prime.

It is not a weakly prime, because it can be changed into another prime (8343193373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4171596696 + 4171596697.

It is an arithmetic number, because the mean of its divisors is an integer number (4171596697).

Almost surely, 2^8343193393 is an apocalyptic number.

It is an amenable number.

8343193393 is a deficient number, since it is larger than the sum of its proper divisors (1).

8343193393 is an equidigital number, since it uses as much as digits as its factorization.

8343193393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 46.

The square root of 8343193393 is about 91341.0827229456. The cubic root of 8343193393 is about 2028.1999616906.

The spelling of 8343193393 in words is "eight billion, three hundred forty-three million, one hundred ninety-three thousand, three hundred ninety-three".