12261688 has 16 divisors (see below), whose sum is σ = 24201000. Its totient is φ = 5808096.

The previous prime is 12261677. The next prime is 12261701. The reversal of 12261688 is 88616221.

12261688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40183 + ... + 40486.

Almost surely, 2^12261688 is an apocalyptic number.

It is an amenable number.

12261688 is a deficient number, since it is larger than the sum of its proper divisors (11939312).

12261688 is a wasteful number, since it uses less digits than its factorization.

12261688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80694 (or 80690 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 12261688 is about 3501.6693161976. The cubic root of 12261688 is about 230.5951066441.

The spelling of 12261688 in words is "twelve million, two hundred sixty-one thousand, six hundred eighty-eight".