13244986 has 4 divisors (see below), whose sum is σ = 19867482. Its totient is φ = 6622492.

The previous prime is 13244981. The next prime is 13244993. The reversal of 13244986 is 68944231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68944231 = 17 ⋅4055543.

It can be written as a sum of positive squares in only one way, i.e., 10439361 + 2805625 = 3231^2 + 1675^2 .

It is not an unprimeable number, because it can be changed into a prime (13244981) 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, 3311245 + ... + 3311248.

Almost surely, 2^13244986 is an apocalyptic number.

13244986 is a deficient number, since it is larger than the sum of its proper divisors (6622496).

13244986 is an equidigital number, since it uses as much as digits as its factorization.

13244986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6622495.

The product of its digits is 41472, while the sum is 37.

The square root of 13244986 is about 3639.3661536042. The cubic root of 13244986 is about 236.6013225230.

The spelling of 13244986 in words is "thirteen million, two hundred forty-four thousand, nine hundred eighty-six".