12869689 has 4 divisors (see below), whose sum is σ = 14708224. Its totient is φ = 11031156.

The previous prime is 12869671. The next prime is 12869699. The reversal of 12869689 is 98696821.

It is a happy number.

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 12869689 - 2⁵ = 12869657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12869609) 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, 919257 + ... + 919270.

It is an arithmetic number, because the mean of its divisors is an integer number (3677056).

Almost surely, 2^12869689 is an apocalyptic number.

It is an amenable number.

12869689 is a deficient number, since it is larger than the sum of its proper divisors (1838535).

12869689 is an equidigital number, since it uses as much as digits as its factorization.

12869689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838534.

The product of its digits is 373248, while the sum is 49.

The square root of 12869689 is about 3587.4348774577. The cubic root of 12869689 is about 234.3451756776.

The spelling of 12869689 in words is "twelve million, eight hundred sixty-nine thousand, six hundred eighty-nine".