12977186 has 8 divisors (see below), whose sum is σ = 19525584. Its totient is φ = 6468660.

The previous prime is 12977177. The next prime is 12977191. The reversal of 12977186 is 68177921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9140 + ... + 10463.

It is an arithmetic number, because the mean of its divisors is an integer number (2440698).

Almost surely, 2^12977186 is an apocalyptic number.

12977186 is a deficient number, since it is larger than the sum of its proper divisors (6548398).

12977186 is a wasteful number, since it uses less digits than its factorization.

12977186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19936.

The product of its digits is 42336, while the sum is 41.

The square root of 12977186 is about 3602.3861536487. The cubic root of 12977186 is about 234.9958411819.

The spelling of 12977186 in words is "twelve million, nine hundred seventy-seven thousand, one hundred eighty-six".