12944667 has 16 divisors (see below), whose sum is σ = 18623520. Its totient is φ = 7967232.

The previous prime is 12944663. The next prime is 12944669. The reversal of 12944667 is 76644921.

It is a happy number.

It is not a de Polignac number, because 12944667 - 2² = 12944663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12944663) 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 15 ways as a sum of consecutive naturals, for example, 309 + ... + 5097.

It is an arithmetic number, because the mean of its divisors is an integer number (1163970).

Almost surely, 2^12944667 is an apocalyptic number.

12944667 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12944667 is a deficient number, since it is larger than the sum of its proper divisors (5678853).

12944667 is a wasteful number, since it uses less digits than its factorization.

12944667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862.

The product of its digits is 72576, while the sum is 39.

The square root of 12944667 is about 3597.8697864153. The cubic root of 12944667 is about 234.7993881713.

The spelling of 12944667 in words is "twelve million, nine hundred forty-four thousand, six hundred sixty-seven".