12089665 has 32 divisors (see below), whose sum is σ = 17614080. Its totient is φ = 7789824.

The previous prime is 12089663. The next prime is 12089677. The reversal of 12089665 is 56698021.

It is not a de Polignac number, because 12089665 - 2¹ = 12089663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12089663) 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 in 31 ways as a sum of consecutive naturals, for example, 43507 + ... + 43783.

It is an arithmetic number, because the mean of its divisors is an integer number (550440).

Almost surely, 2^12089665 is an apocalyptic number.

It is an amenable number.

12089665 is a deficient number, since it is larger than the sum of its proper divisors (5524415).

12089665 is a wasteful number, since it uses less digits than its factorization.

12089665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 12089665 is about 3477.0195570344. The cubic root of 12089665 is about 229.5116607976.

The spelling of 12089665 in words is "twelve million, eighty-nine thousand, six hundred sixty-five".