6343439 has 2 divisors, whose sum is σ = 6343440. Its totient is φ = 6343438.

The previous prime is 6343433. The next prime is 6343453. The reversal of 6343439 is 9343436.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6343439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6343433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3171719 + 3171720.

It is an arithmetic number, because the mean of its divisors is an integer number (3171720).

Almost surely, 2^6343439 is an apocalyptic number.

6343439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6343439 is an equidigital number, since it uses as much as digits as its factorization.

6343439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 32.

The square root of 6343439 is about 2518.6184705112. The cubic root of 6343439 is about 185.1149905995.

The spelling of 6343439 in words is "six million, three hundred forty-three thousand, four hundred thirty-nine".