12845986 has 4 divisors (see below), whose sum is σ = 19268982. Its totient is φ = 6422992.

The previous prime is 12845969. The next prime is 12846007. The reversal of 12845986 is 68954821.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 9891025 + 2954961 = 3145^2 + 1719^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211495 + ... + 3211498.

Almost surely, 2^12845986 is an apocalyptic number.

12845986 is a deficient number, since it is larger than the sum of its proper divisors (6422996).

12845986 is an equidigital number, since it uses as much as digits as its factorization.

12845986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422995.

The product of its digits is 138240, while the sum is 43.

The square root of 12845986 is about 3584.1297409553. The cubic root of 12845986 is about 234.2012173338.

It can be divided in two parts, 12845 and 986, that added together give a palindrome (13831).

The spelling of 12845986 in words is "twelve million, eight hundred forty-five thousand, nine hundred eighty-six".