6349643 has 2 divisors, whose sum is σ = 6349644. Its totient is φ = 6349642.

The previous prime is 6349631. The next prime is 6349649. The reversal of 6349643 is 3469436.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6349643 - 2²⁰ = 5301067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6349649) 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, 3174821 + 3174822.

It is an arithmetic number, because the mean of its divisors is an integer number (3174822).

Almost surely, 2^6349643 is an apocalyptic number.

6349643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6349643 is an equidigital number, since it uses as much as digits as its factorization.

6349643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 6349643 is about 2519.8497971109. The cubic root of 6349643 is about 185.1753195579.

The spelling of 6349643 in words is "six million, three hundred forty-nine thousand, six hundred forty-three".