6711643 has 2 divisors, whose sum is σ = 6711644. Its totient is φ = 6711642.

The previous prime is 6711641. The next prime is 6711667. The reversal of 6711643 is 3461176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6711643 - 2¹ = 6711641 is a prime.

Together with 6711641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6711641) 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, 3355821 + 3355822.

It is an arithmetic number, because the mean of its divisors is an integer number (3355822).

Almost surely, 2^6711643 is an apocalyptic number.

6711643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6711643 is an equidigital number, since it uses as much as digits as its factorization.

6711643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 6711643 is about 2590.6838865442. The cubic root of 6711643 is about 188.6295010317.

The spelling of 6711643 in words is "six million, seven hundred eleven thousand, six hundred forty-three".