12744386 has 4 divisors (see below), whose sum is σ = 19116582. Its totient is φ = 6372192.

The previous prime is 12744377. The next prime is 12744397. The reversal of 12744386 is 68344721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68344721 = 47 ⋅1454143.

It can be written as a sum of positive squares in only one way, i.e., 9803161 + 2941225 = 3131^2 + 1715^2 .

It is an unprimeable number.

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, 3186095 + ... + 3186098.

Almost surely, 2^12744386 is an apocalyptic number.

12744386 is a deficient number, since it is larger than the sum of its proper divisors (6372196).

12744386 is an equidigital number, since it uses as much as digits as its factorization.

12744386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372195.

The product of its digits is 32256, while the sum is 35.

The square root of 12744386 is about 3569.9280104786. The cubic root of 12744386 is about 233.5821432095.

The spelling of 12744386 in words is "twelve million, seven hundred forty-four thousand, three hundred eighty-six".