6443743 has 2 divisors, whose sum is σ = 6443744. Its totient is φ = 6443742.

The previous prime is 6443737. The next prime is 6443779. The reversal of 6443743 is 3473446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6443743 - 2⁹ = 6443231 is a prime.

It is a d-powerful number, because it can be written as 6² + 4⁷ + 4⁸ + 3² + 7⁸ + 4⁸ + 3¹² .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6443543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221871 + 3221872.

It is an arithmetic number, because the mean of its divisors is an integer number (3221872).

Almost surely, 2^6443743 is an apocalyptic number.

6443743 is a deficient number, since it is larger than the sum of its proper divisors (1).

6443743 is an equidigital number, since it uses as much as digits as its factorization.

6443743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 31.

The square root of 6443743 is about 2538.4528752766. The cubic root of 6443743 is about 186.0855870808.

The spelling of 6443743 in words is "six million, four hundred forty-three thousand, seven hundred forty-three".