12239689 has 16 divisors (see below), whose sum is σ = 15636096. Its totient is φ = 9302400.

The previous prime is 12239681. The next prime is 12239701. The reversal of 12239689 is 98693221.

It is a happy number.

12239689 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12239689 - 2³ = 12239681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12239681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219 + ... + 5095.

It is an arithmetic number, because the mean of its divisors is an integer number (977256).

Almost surely, 2^12239689 is an apocalyptic number.

It is an amenable number.

12239689 is a deficient number, since it is larger than the sum of its proper divisors (3396407).

12239689 is a wasteful number, since it uses less digits than its factorization.

12239689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936.

The product of its digits is 46656, while the sum is 40.

The square root of 12239689 is about 3498.5266899082. The cubic root of 12239689 is about 230.4571186128.

The spelling of 12239689 in words is "twelve million, two hundred thirty-nine thousand, six hundred eighty-nine".