10668643 has 2 divisors, whose sum is σ = 10668644. Its totient is φ = 10668642.

The previous prime is 10668641. The next prime is 10668653. The reversal of 10668643 is 34686601.

It is a weak prime.

It is an emirp because it is prime and its reverse (34686601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10668643 - 2¹ = 10668641 is a prime.

It is a super-2 number, since 2×10668643² = 227639886922898, which contains 22 as substring.

Together with 10668641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10668599 and 10668608.

It is not a weakly prime, because it can be changed into another prime (10668641) 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, 5334321 + 5334322.

It is an arithmetic number, because the mean of its divisors is an integer number (5334322).

Almost surely, 2^10668643 is an apocalyptic number.

10668643 is a deficient number, since it is larger than the sum of its proper divisors (1).

10668643 is an equidigital number, since it uses as much as digits as its factorization.

10668643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 10668643 is about 3266.2888727117. The cubic root of 10668643 is about 220.1420776469.

It can be divided in two parts, 10668 and 643, that added together give a palindrome (11311).

The spelling of 10668643 in words is "ten million, six hundred sixty-eight thousand, six hundred forty-three".