6229439 has 2 divisors, whose sum is σ = 6229440. Its totient is φ = 6229438.

The previous prime is 6229409. The next prime is 6229441. The reversal of 6229439 is 9349226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6229439 - 2⁸ = 6229183 is a prime.

It is a Sophie Germain prime.

Together with 6229441, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6229399 and 6229408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6229409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3114719 + 3114720.

It is an arithmetic number, because the mean of its divisors is an integer number (3114720).

Almost surely, 2^6229439 is an apocalyptic number.

6229439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6229439 is an equidigital number, since it uses as much as digits as its factorization.

6229439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 6229439 is about 2495.8844123877. The cubic root of 6229439 is about 183.9993600324. Note that the first 3 decimals are identical.

The spelling of 6229439 in words is "six million, two hundred twenty-nine thousand, four hundred thirty-nine".