12706986 has 16 divisors (see below), whose sum is σ = 25530624. Its totient is φ = 4216224.

The previous prime is 12706979. The next prime is 12706987. The reversal of 12706986 is 68960721.

It is a super-2 number, since 2×12706986² = 322934986408392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12706987) 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 7 ways as a sum of consecutive naturals, for example, 3411 + ... + 6086.

It is an arithmetic number, because the mean of its divisors is an integer number (1595664).

Almost surely, 2^12706986 is an apocalyptic number.

12706986 is an abundant number, since it is smaller than the sum of its proper divisors (12823638).

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

12706986 is a wasteful number, since it uses less digits than its factorization.

12706986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9725.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 12706986 is about 3564.6859609228. The cubic root of 12706986 is about 233.3534272945.

It can be divided in two parts, 1270 and 6986, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 12706986 in words is "twelve million, seven hundred six thousand, nine hundred eighty-six".