8390955193 has 2 divisors, whose sum is σ = 8390955194. Its totient is φ = 8390955192.

The previous prime is 8390955191. The next prime is 8390955227. The reversal of 8390955193 is 3915590938.

It is a happy number.

8390955193 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8390010409 + 944784 = 91597^2 + 972^2 .

It is a cyclic number.

It is not a de Polignac number, because 8390955193 - 2¹ = 8390955191 is a prime.

Together with 8390955191, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8390955193.

It is not a weakly prime, because it can be changed into another prime (8390955191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4195477596 + 4195477597.

It is an arithmetic number, because the mean of its divisors is an integer number (4195477597).

Almost surely, 2^8390955193 is an apocalyptic number.

It is an amenable number.

8390955193 is a deficient number, since it is larger than the sum of its proper divisors (1).

8390955193 is an equidigital number, since it uses as much as digits as its factorization.

8390955193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312200, while the sum is 52.

The square root of 8390955193 is about 91602.1571416307. The cubic root of 8390955193 is about 2032.0628397839.

The spelling of 8390955193 in words is "eight billion, three hundred ninety million, nine hundred fifty-five thousand, one hundred ninety-three".