3873839 has 2 divisors, whose sum is σ = 3873840. Its totient is φ = 3873838.

The previous prime is 3873833. The next prime is 3873847. The reversal of 3873839 is 9383783.

It is a weak prime.

It is an emirp because it is prime and its reverse (9383783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3873839 - 2¹² = 3869743 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3873796 and 3873805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3873833) 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, 1936919 + 1936920.

It is an arithmetic number, because the mean of its divisors is an integer number (1936920).

Almost surely, 2^3873839 is an apocalyptic number.

3873839 is a deficient number, since it is larger than the sum of its proper divisors (1).

3873839 is an equidigital number, since it uses as much as digits as its factorization.

3873839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 3873839 is about 1968.2070521162. The cubic root of 3873839 is about 157.0533444164.

The spelling of 3873839 in words is "three million, eight hundred seventy-three thousand, eight hundred thirty-nine".