12089089 has 2 divisors, whose sum is σ = 12089090. Its totient is φ = 12089088.

The previous prime is 12089087. The next prime is 12089093. The reversal of 12089089 is 98098021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9199089 + 2890000 = 3033^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 12089089 - 2¹ = 12089087 is a prime.

It is a super-2 number, since 2×12089089² = 292292145699842, which contains 22 as substring.

Together with 12089087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12089083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6044544 + 6044545.

It is an arithmetic number, because the mean of its divisors is an integer number (6044545).

Almost surely, 2^12089089 is an apocalyptic number.

It is an amenable number.

12089089 is a deficient number, since it is larger than the sum of its proper divisors (1).

12089089 is an equidigital number, since it uses as much as digits as its factorization.

12089089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 12089089 is about 3476.9367264878. The cubic root of 12089089 is about 229.5080157886.

The spelling of 12089089 in words is "twelve million, eighty-nine thousand, eighty-nine".