12906605 has 8 divisors (see below), whose sum is σ = 16303200. Its totient is φ = 9781776.

The previous prime is 12906589. The next prime is 12906667. The reversal of 12906605 is 50660921.

12906605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12906605 - 2⁴ = 12906589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67835 + ... + 68024.

It is an arithmetic number, because the mean of its divisors is an integer number (2037900).

Almost surely, 2^12906605 is an apocalyptic number.

It is an amenable number.

12906605 is a deficient number, since it is larger than the sum of its proper divisors (3396595).

12906605 is a wasteful number, since it uses less digits than its factorization.

12906605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135883.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 12906605 is about 3592.5763735793. The cubic root of 12906605 is about 234.5690305545.

The spelling of 12906605 in words is "twelve million, nine hundred six thousand, six hundred five".