12643606 has 8 divisors (see below), whose sum is σ = 19790064. Its totient is φ = 6046920.

The previous prime is 12643573. The next prime is 12643613. The reversal of 12643606 is 60634621.

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, 137385 + ... + 137476.

It is an arithmetic number, because the mean of its divisors is an integer number (2473758).

Almost surely, 2^12643606 is an apocalyptic number.

12643606 is a deficient number, since it is larger than the sum of its proper divisors (7146458).

12643606 is a wasteful number, since it uses less digits than its factorization.

12643606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274886.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 12643606 is about 3555.7848641334. The cubic root of 12643606 is about 232.9648064634.

The spelling of 12643606 in words is "twelve million, six hundred forty-three thousand, six hundred six".