839848643 has 2 divisors, whose sum is σ = 839848644. Its totient is φ = 839848642.

The previous prime is 839848631. The next prime is 839848649. The reversal of 839848643 is 346848938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 839848643 - 2⁶ = 839848579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (839848649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419924321 + 419924322.

It is an arithmetic number, because the mean of its divisors is an integer number (419924322).

Almost surely, 2^839848643 is an apocalyptic number.

839848643 is a deficient number, since it is larger than the sum of its proper divisors (1).

839848643 is an equidigital number, since it uses as much as digits as its factorization.

839848643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 53.

The square root of 839848643 is about 28980.1422184226. The cubic root of 839848643 is about 943.4821215474.

The spelling of 839848643 in words is "eight hundred thirty-nine million, eight hundred forty-eight thousand, six hundred forty-three".