12992447 has 16 divisors (see below), whose sum is σ = 15375360. Its totient is φ = 10863072.

The previous prime is 12992423. The next prime is 12992459. The reversal of 12992447 is 74429921.

It is a cyclic number.

It is not a de Polignac number, because 12992447 - 2¹⁰ = 12991423 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12992447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12992417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4538 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^12992447 is an apocalyptic number.

12992447 is a deficient number, since it is larger than the sum of its proper divisors (2382913).

12992447 is a wasteful number, since it uses less digits than its factorization.

12992447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342.

The product of its digits is 36288, while the sum is 38.

The square root of 12992447 is about 3604.5037106376. The cubic root of 12992447 is about 235.0879224350.

The spelling of 12992447 in words is "twelve million, nine hundred ninety-two thousand, four hundred forty-seven".