839238193 has 2 divisors, whose sum is σ = 839238194. Its totient is φ = 839238192.

The previous prime is 839238173. The next prime is 839238229. The reversal of 839238193 is 391832938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670965409 + 168272784 = 25903^2 + 12972^2 .

It is a cyclic number.

It is not a de Polignac number, because 839238193 - 2⁵ = 839238161 is a prime.

It is not a weakly prime, because it can be changed into another prime (839238173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419619096 + 419619097.

It is an arithmetic number, because the mean of its divisors is an integer number (419619097).

Almost surely, 2^839238193 is an apocalyptic number.

It is an amenable number.

839238193 is a deficient number, since it is larger than the sum of its proper divisors (1).

839238193 is an equidigital number, since it uses as much as digits as its factorization.

839238193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 839238193 is about 28969.6080919297. The cubic root of 839238193 is about 943.2534738951.

The spelling of 839238193 in words is "eight hundred thirty-nine million, two hundred thirty-eight thousand, one hundred ninety-three".