3879839 has 2 divisors, whose sum is σ = 3879840. Its totient is φ = 3879838.

The previous prime is 3879829. The next prime is 3879851. The reversal of 3879839 is 9389783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3879839 - 2¹² = 3875743 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3879793 and 3879802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3879829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939919 + 1939920.

It is an arithmetic number, because the mean of its divisors is an integer number (1939920).

Almost surely, 2^3879839 is an apocalyptic number.

3879839 is a deficient number, since it is larger than the sum of its proper divisors (1).

3879839 is an equidigital number, since it uses as much as digits as its factorization.

3879839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 3879839 is about 1969.7306922521. The cubic root of 3879839 is about 157.1343866745.

The spelling of 3879839 in words is "three million, eight hundred seventy-nine thousand, eight hundred thirty-nine".