12689336 has 32 divisors (see below), whose sum is σ = 26596080. Its totient is φ = 5625600.

The previous prime is 12689317. The next prime is 12689357. The reversal of 12689336 is 63398621.

It is a super-2 number, since 2×12689336² = 322038496241792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12689336.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1850 + ... + 5366.

Almost surely, 2^12689336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12689336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13298040).

12689336 is an abundant number, since it is smaller than the sum of its proper divisors (13906744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12689336 is a wasteful number, since it uses less digits than its factorization.

12689336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3571 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 12689336 is about 3562.2094267463. The cubic root of 12689336 is about 233.2453346170.

The spelling of 12689336 in words is "twelve million, six hundred eighty-nine thousand, three hundred thirty-six".