12634666 has 16 divisors (see below), whose sum is σ = 20769408. Its totient is φ = 5716800.

The previous prime is 12634651. The next prime is 12634693. The reversal of 12634666 is 66643621.

12634666 is nontrivially palindromic in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4111 + ... + 6493.

It is an arithmetic number, because the mean of its divisors is an integer number (1298088).

Almost surely, 2^12634666 is an apocalyptic number.

12634666 is a deficient number, since it is larger than the sum of its proper divisors (8134742).

12634666 is a wasteful number, since it uses less digits than its factorization.

12634666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637.

The product of its digits is 31104, while the sum is 34.

The square root of 12634666 is about 3554.5275354117. The cubic root of 12634666 is about 232.9098855165.

It can be divided in two parts, 1263 and 4666, that added together give a square (5929 = 77²).

The spelling of 12634666 in words is "twelve million, six hundred thirty-four thousand, six hundred sixty-six".