12937646 has 16 divisors (see below), whose sum is σ = 20742480. Its totient is φ = 6030720.

The previous prime is 12937621. The next prime is 12937649. The reversal of 12937646 is 64673921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12937649) 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, 1961 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (1296405).

Almost surely, 2^12937646 is an apocalyptic number.

12937646 is a deficient number, since it is larger than the sum of its proper divisors (7804834).

12937646 is a wasteful number, since it uses less digits than its factorization.

12937646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619.

The product of its digits is 54432, while the sum is 38.

The square root of 12937646 is about 3596.8939378302. The cubic root of 12937646 is about 234.7569298977.

The spelling of 12937646 in words is "twelve million, nine hundred thirty-seven thousand, six hundred forty-six".