3839839 has 2 divisors, whose sum is σ = 3839840. Its totient is φ = 3839838.

The previous prime is 3839833. The next prime is 3839851. The reversal of 3839839 is 9389383.

It is a weak prime.

It is an emirp because it is prime and its reverse (9389383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3839839 - 2⁷ = 3839711 is a prime.

3839839 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3839795 and 3839804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3839833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1919919 + 1919920.

It is an arithmetic number, because the mean of its divisors is an integer number (1919920).

Almost surely, 2^3839839 is an apocalyptic number.

3839839 is a deficient number, since it is larger than the sum of its proper divisors (1).

3839839 is an equidigital number, since it uses as much as digits as its factorization.

3839839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 3839839 is about 1959.5507138117. The cubic root of 3839839 is about 156.5925170964.

The spelling of 3839839 in words is "three million, eight hundred thirty-nine thousand, eight hundred thirty-nine".