3959844943 has 2 divisors, whose sum is σ = 3959844944. Its totient is φ = 3959844942.

The previous prime is 3959844937. The next prime is 3959844953. The reversal of 3959844943 is 3494489593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3959844943 - 2²¹ = 3957747791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3959844953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979922471 + 1979922472.

It is an arithmetic number, because the mean of its divisors is an integer number (1979922472).

Almost surely, 2^3959844943 is an apocalyptic number.

3959844943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3959844943 is an equidigital number, since it uses as much as digits as its factorization.

3959844943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16796160, while the sum is 58.

The square root of 3959844943 is about 62927.2988694096. The cubic root of 3959844943 is about 1582.0713290602.

The spelling of 3959844943 in words is "three billion, nine hundred fifty-nine million, eight hundred forty-four thousand, nine hundred forty-three".