12713666 has 16 divisors (see below), whose sum is σ = 21847104. Its totient is φ = 5435664.

The previous prime is 12713663. The next prime is 12713677. The reversal of 12713666 is 66631721.

It is not an unprimeable number, because it can be changed into a prime (12713663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7076 + ... + 8688.

It is an arithmetic number, because the mean of its divisors is an integer number (1365444).

Almost surely, 2^12713666 is an apocalyptic number.

12713666 is a deficient number, since it is larger than the sum of its proper divisors (9133438).

12713666 is a wasteful number, since it uses less digits than its factorization.

12713666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185.

The product of its digits is 9072, while the sum is 32.

The square root of 12713666 is about 3565.6228067478. The cubic root of 12713666 is about 233.3943110472.

The spelling of 12713666 in words is "twelve million, seven hundred thirteen thousand, six hundred sixty-six".