12716986 has 8 divisors (see below), whose sum is σ = 20197620. Its totient is φ = 5984448.

The previous prime is 12716983. The next prime is 12716989. The reversal of 12716986 is 68961721.

It is an interprime number because it is at equal distance from previous prime (12716983) and next prime (12716989).

It can be written as a sum of positive squares in 2 ways, for example, as 12638025 + 78961 = 3555^2 + 281^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12716981) 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 in 3 ways as a sum of consecutive naturals, for example, 186981 + ... + 187048.

Almost surely, 2^12716986 is an apocalyptic number.

12716986 is a deficient number, since it is larger than the sum of its proper divisors (7480634).

12716986 is a wasteful number, since it uses less digits than its factorization.

12716986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374048.

The product of its digits is 36288, while the sum is 40.

The square root of 12716986 is about 3566.0883331740. The cubic root of 12716986 is about 233.4146251899.

The spelling of 12716986 in words is "twelve million, seven hundred sixteen thousand, nine hundred eighty-six".