12677986 has 4 divisors (see below), whose sum is σ = 19016982. Its totient is φ = 6338992.

The previous prime is 12677957. The next prime is 12677989. The reversal of 12677986 is 68977621.

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., 7700625 + 4977361 = 2775^2 + 2231^2 .

It is not an unprimeable number, because it can be changed into a prime (12677989) 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, 3169495 + ... + 3169498.

Almost surely, 2^12677986 is an apocalyptic number.

12677986 is a deficient number, since it is larger than the sum of its proper divisors (6338996).

12677986 is an equidigital number, since it uses as much as digits as its factorization.

12677986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338995.

The product of its digits is 254016, while the sum is 46.

The square root of 12677986 is about 3560.6159579488. The cubic root of 12677986 is about 233.1757716327.

The spelling of 12677986 in words is "twelve million, six hundred seventy-seven thousand, nine hundred eighty-six".