12906646 has 8 divisors (see below), whose sum is σ = 19432224. Its totient is φ = 6429240.

The previous prime is 12906589. The next prime is 12906667. The reversal of 12906646 is 64660921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11365 + ... + 12448.

It is an arithmetic number, because the mean of its divisors is an integer number (2429028).

Almost surely, 2^12906646 is an apocalyptic number.

12906646 is a deficient number, since it is larger than the sum of its proper divisors (6525578).

12906646 is a wasteful number, since it uses less digits than its factorization.

12906646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24086.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 12906646 is about 3592.5820797861. The cubic root of 12906646 is about 234.5692789368.

The spelling of 12906646 in words is "twelve million, nine hundred six thousand, six hundred forty-six".