12966667 has 8 divisors (see below), whose sum is σ = 14885600. Its totient is φ = 11064384.

The previous prime is 12966661. The next prime is 12966703. The reversal of 12966667 is 76666921.

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

It is a cyclic number.

It is not a de Polignac number, because 12966667 - 2¹¹ = 12964619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12966661) 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 7 ways as a sum of consecutive naturals, for example, 2442 + ... + 5647.

It is an arithmetic number, because the mean of its divisors is an integer number (1860700).

Almost surely, 2^12966667 is an apocalyptic number.

12966667 is a deficient number, since it is larger than the sum of its proper divisors (1918933).

12966667 is an equidigital number, since it uses as much as digits as its factorization.

12966667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325.

The product of its digits is 163296, while the sum is 43.

The square root of 12966667 is about 3600.9258531661. The cubic root of 12966667 is about 234.9323299952.

The spelling of 12966667 in words is "twelve million, nine hundred sixty-six thousand, six hundred sixty-seven".