7066643 has 2 divisors, whose sum is σ = 7066644. Its totient is φ = 7066642.

The previous prime is 7066639. The next prime is 7066699. The reversal of 7066643 is 3466607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7066643 - 2² = 7066639 is a prime.

It is not a weakly prime, because it can be changed into another prime (7096643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3533321 + 3533322.

It is an arithmetic number, because the mean of its divisors is an integer number (3533322).

Almost surely, 2^7066643 is an apocalyptic number.

7066643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7066643 is an equidigital number, since it uses as much as digits as its factorization.

7066643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 7066643 is about 2658.3158202140. The cubic root of 7066643 is about 191.8982660551.

The spelling of 7066643 in words is "seven million, sixty-six thousand, six hundred forty-three".