12637966 has 12 divisors (see below), whose sum is σ = 20837376. Its totient is φ = 5744420.

The previous prime is 12637957. The next prime is 12637967. The reversal of 12637966 is 66973621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12637967) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 25870 + ... + 26353.

It is an arithmetic number, because the mean of its divisors is an integer number (1736448).

Almost surely, 2^12637966 is an apocalyptic number.

12637966 is a deficient number, since it is larger than the sum of its proper divisors (8199410).

12637966 is a wasteful number, since it uses less digits than its factorization.

12637966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52247 (or 52236 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 12637966 is about 3554.9917018187. The cubic root of 12637966 is about 232.9301613649.

It can be divided in two parts, 1263 and 7966, that added together give a palindrome (9229).

The spelling of 12637966 in words is "twelve million, six hundred thirty-seven thousand, nine hundred sixty-six".