12412689 has 4 divisors (see below), whose sum is σ = 16550256. Its totient is φ = 8275124.

The previous prime is 12412661. The next prime is 12412693. The reversal of 12412689 is 98621421.

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 12412689 - 2⁵ = 12412657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12412489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2068779 + ... + 2068784.

It is an arithmetic number, because the mean of its divisors is an integer number (4137564).

Almost surely, 2^12412689 is an apocalyptic number.

It is an amenable number.

12412689 is a deficient number, since it is larger than the sum of its proper divisors (4137567).

12412689 is an equidigital number, since it uses as much as digits as its factorization.

12412689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137566.

The product of its digits is 6912, while the sum is 33.

The square root of 12412689 is about 3523.1646285690. The cubic root of 12412689 is about 231.5378296679.

The spelling of 12412689 in words is "twelve million, four hundred twelve thousand, six hundred eighty-nine".