16403227 has 2 divisors, whose sum is σ = 16403228. Its totient is φ = 16403226.

The previous prime is 16403197. The next prime is 16403237. The reversal of 16403227 is 72230461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16403227 is a prime.

It is not a weakly prime, because it can be changed into another prime (16403237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8201613 + 8201614.

It is an arithmetic number, because the mean of its divisors is an integer number (8201614).

Almost surely, 2^16403227 is an apocalyptic number.

16403227 is a deficient number, since it is larger than the sum of its proper divisors (1).

16403227 is an equidigital number, since it uses as much as digits as its factorization.

16403227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 16403227 is about 4050.0897520919. The cubic root of 16403227 is about 254.0834815597.

Adding to 16403227 its reverse (72230461), we get a palindrome (88633688).

The spelling of 16403227 in words is "sixteen million, four hundred three thousand, two hundred twenty-seven".