12445986 has 32 divisors (see below), whose sum is σ = 29220480. Its totient is φ = 3459456.

The previous prime is 12445957. The next prime is 12445997. The reversal of 12445986 is 68954421.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2451 + ... + 5558.

It is an arithmetic number, because the mean of its divisors is an integer number (913140).

Almost surely, 2^12445986 is an apocalyptic number.

12445986 is an abundant number, since it is smaller than the sum of its proper divisors (16774494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12445986 is a wasteful number, since it uses less digits than its factorization.

12445986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8058.

The product of its digits is 69120, while the sum is 39.

The square root of 12445986 is about 3527.8869029491. The cubic root of 12445986 is about 231.7446779929.

It can be divided in two parts, 12445 and 986, that added together give a palindrome (13431).

The spelling of 12445986 in words is "twelve million, four hundred forty-five thousand, nine hundred eighty-six".