13006646 has 8 divisors (see below), whose sum is σ = 19596600. Its totient is φ = 6474448.

The previous prime is 13006627. The next prime is 13006667. The reversal of 13006646 is 64660031.

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

It is a Curzon number.

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, 13871 + ... + 14778.

It is an arithmetic number, because the mean of its divisors is an integer number (2449575).

Almost surely, 2^13006646 is an apocalyptic number.

13006646 is a deficient number, since it is larger than the sum of its proper divisors (6589954).

13006646 is a wasteful number, since it uses less digits than its factorization.

13006646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28878.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13006646 is about 3606.4727920782. The cubic root of 13006646 is about 235.1735311005.

Adding to 13006646 its reverse (64660031), we get a palindrome (77666677).

The spelling of 13006646 in words is "thirteen million, six thousand, six hundred forty-six".