8839139 has 2 divisors, whose sum is σ = 8839140. Its totient is φ = 8839138.

The previous prime is 8839111. The next prime is 8839141. The reversal of 8839139 is 9319388.

8839139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8839139 - 2⁸ = 8838883 is a prime.

It is a super-2 number, since 2×8839139² = 156260756522642, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 8839141, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8839096 and 8839105.

It is not a weakly prime, because it can be changed into another prime (8839339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4419569 + 4419570.

It is an arithmetic number, because the mean of its divisors is an integer number (4419570).

Almost surely, 2^8839139 is an apocalyptic number.

8839139 is a deficient number, since it is larger than the sum of its proper divisors (1).

8839139 is an equidigital number, since it uses as much as digits as its factorization.

8839139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 8839139 is about 2973.0689531190. The cubic root of 8839139 is about 206.7616493102.

Subtracting 8839139 from its reverse (9319388), we obtain a square (480249 = 693²).

The spelling of 8839139 in words is "eight million, eight hundred thirty-nine thousand, one hundred thirty-nine".