13067986 has 8 divisors (see below), whose sum is σ = 19796364. Its totient is φ = 6469200.

The previous prime is 13067983. The next prime is 13067987. The reversal of 13067986 is 68976031.

It can be written as a sum of positive squares in 2 ways, for example, as 12117361 + 950625 = 3481^2 + 975^2 .

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 (13067981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32145 + ... + 32548.

Almost surely, 2^13067986 is an apocalyptic number.

13067986 is a deficient number, since it is larger than the sum of its proper divisors (6728378).

13067986 is a wasteful number, since it uses less digits than its factorization.

13067986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64796.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 13067986 is about 3614.9669431407. The cubic root of 13067986 is about 235.5426482023.

The spelling of 13067986 in words is "thirteen million, sixty-seven thousand, nine hundred eighty-six".