12606689 has 8 divisors (see below), whose sum is σ = 12845952. Its totient is φ = 12369280.

The previous prime is 12606667. The next prime is 12606703. The reversal of 12606689 is 98660621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12606689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12606889) 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, 24812 + ... + 25314.

It is an arithmetic number, because the mean of its divisors is an integer number (1605744).

Almost surely, 2^12606689 is an apocalyptic number.

It is an amenable number.

12606689 is a deficient number, since it is larger than the sum of its proper divisors (239263).

12606689 is an equidigital number, since it uses as much as digits as its factorization.

12606689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 12606689 is about 3550.5899509800. The cubic root of 12606689 is about 232.7378473228.

The spelling of 12606689 in words is "twelve million, six hundred six thousand, six hundred eighty-nine".