12208643 has 2 divisors, whose sum is σ = 12208644. Its totient is φ = 12208642.

The previous prime is 12208627. The next prime is 12208667. The reversal of 12208643 is 34680221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12208643 - 2⁴ = 12208627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12208543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6104321 + 6104322.

It is an arithmetic number, because the mean of its divisors is an integer number (6104322).

Almost surely, 2^12208643 is an apocalyptic number.

12208643 is a deficient number, since it is larger than the sum of its proper divisors (1).

12208643 is an equidigital number, since it uses as much as digits as its factorization.

12208643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 12208643 is about 3494.0868621143. The cubic root of 12208643 is about 230.2621019582.

Adding to 12208643 its reverse (34680221), we get a palindrome (46888864).

The spelling of 12208643 in words is "twelve million, two hundred eight thousand, six hundred forty-three".