12897089 has 8 divisors (see below), whose sum is σ = 13493952. Its totient is φ = 12303280.

The previous prime is 12897077. The next prime is 12897091. The reversal of 12897089 is 98079821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12897089 - 2⁸ = 12896833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12897019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15299 + ... + 16119.

It is an arithmetic number, because the mean of its divisors is an integer number (1686744).

Almost surely, 2^12897089 is an apocalyptic number.

It is an amenable number.

12897089 is a deficient number, since it is larger than the sum of its proper divisors (596863).

12897089 is an equidigital number, since it uses as much as digits as its factorization.

12897089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 12897089 is about 3591.2517316390. The cubic root of 12897089 is about 234.5113673733.

The spelling of 12897089 in words is "twelve million, eight hundred ninety-seven thousand, eighty-nine".