12646982 has 4 divisors (see below), whose sum is σ = 18970476. Its totient is φ = 6323490.

The previous prime is 12646981. The next prime is 12647003. The reversal of 12646982 is 28964621.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646981) 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 as a sum of consecutive naturals, namely, 3161744 + ... + 3161747.

It is an arithmetic number, because the mean of its divisors is an integer number (4742619).

Almost surely, 2^12646982 is an apocalyptic number.

12646982 is a deficient number, since it is larger than the sum of its proper divisors (6323494).

12646982 is an equidigital number, since it uses as much as digits as its factorization.

12646982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323493.

The product of its digits is 41472, while the sum is 38.

The square root of 12646982 is about 3556.2595518325. The cubic root of 12646982 is about 232.9855394514.

The spelling of 12646982 in words is "twelve million, six hundred forty-six thousand, nine hundred eighty-two".