12689067 has 4 divisors (see below), whose sum is σ = 16918760. Its totient is φ = 8459376.

The previous prime is 12689057. The next prime is 12689069. The reversal of 12689067 is 76098621.

12689067 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12689067 - 2⁴ = 12689051 is a prime.

It is a super-2 number, since 2×12689067² = 322024842660978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12689069) 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, 2114842 + ... + 2114847.

It is an arithmetic number, because the mean of its divisors is an integer number (4229690).

Almost surely, 2^12689067 is an apocalyptic number.

12689067 is a deficient number, since it is larger than the sum of its proper divisors (4229693).

12689067 is an equidigital number, since it uses as much as digits as its factorization.

12689067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229692.

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

The square root of 12689067 is about 3562.1716690805. The cubic root of 12689067 is about 233.2436864237.

The spelling of 12689067 in words is "twelve million, six hundred eighty-nine thousand, sixty-seven".