12643673 has 16 divisors (see below), whose sum is σ = 14847360. Its totient is φ = 10544256.

The previous prime is 12643669. The next prime is 12643717. The reversal of 12643673 is 37634621.

12643673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12643673 - 2² = 12643669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12643613) 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, 55586 + ... + 55812.

It is an arithmetic number, because the mean of its divisors is an integer number (927960).

Almost surely, 2^12643673 is an apocalyptic number.

It is an amenable number.

12643673 is a deficient number, since it is larger than the sum of its proper divisors (2203687).

12643673 is a wasteful number, since it uses less digits than its factorization.

12643673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416.

The product of its digits is 18144, while the sum is 32.

The square root of 12643673 is about 3555.7942853883. The cubic root of 12643673 is about 232.9652179656.

The spelling of 12643673 in words is "twelve million, six hundred forty-three thousand, six hundred seventy-three".