16605227 has 2 divisors, whose sum is σ = 16605228. Its totient is φ = 16605226.

The previous prime is 16605217. The next prime is 16605233. The reversal of 16605227 is 72250661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16605227 - 2⁶ = 16605163 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16605227.

It is not a weakly prime, because it can be changed into another prime (16605217) 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, 8302613 + 8302614.

It is an arithmetic number, because the mean of its divisors is an integer number (8302614).

Almost surely, 2^16605227 is an apocalyptic number.

16605227 is a deficient number, since it is larger than the sum of its proper divisors (1).

16605227 is an equidigital number, since it uses as much as digits as its factorization.

16605227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 16605227 is about 4074.9511653516. The cubic root of 16605227 is about 255.1222123401.

Adding to 16605227 its reverse (72250661), we get a palindrome (88855888).

The spelling of 16605227 in words is "sixteen million, six hundred five thousand, two hundred twenty-seven".