12966089 has 4 divisors (see below), whose sum is σ = 13529856. Its totient is φ = 12402324.

The previous prime is 12966073. The next prime is 12966097. The reversal of 12966089 is 98066921.

12966089 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12966089 - 2⁴ = 12966073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12966589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281849 + ... + 281894.

It is an arithmetic number, because the mean of its divisors is an integer number (3382464).

Almost surely, 2^12966089 is an apocalyptic number.

It is an amenable number.

12966089 is a deficient number, since it is larger than the sum of its proper divisors (563767).

12966089 is an equidigital number, since it uses as much as digits as its factorization.

12966089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563766.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 12966089 is about 3600.8455951346. The cubic root of 12966089 is about 234.9288391751.

The spelling of 12966089 in words is "twelve million, nine hundred sixty-six thousand, eighty-nine".