16227089 has 2 divisors, whose sum is σ = 16227090. Its totient is φ = 16227088.

The previous prime is 16227077. The next prime is 16227109. The reversal of 16227089 is 98072261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15737089 + 490000 = 3967^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 16227089 - 2⁴ = 16227073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16227019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8113544 + 8113545.

It is an arithmetic number, because the mean of its divisors is an integer number (8113545).

Almost surely, 2^16227089 is an apocalyptic number.

It is an amenable number.

16227089 is a deficient number, since it is larger than the sum of its proper divisors (1).

16227089 is an equidigital number, since it uses as much as digits as its factorization.

16227089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 16227089 is about 4028.2861119836. The cubic root of 16227089 is about 253.1707565304.

The spelling of 16227089 in words is "sixteen million, two hundred twenty-seven thousand, eighty-nine".