12812447 has 8 divisors (see below), whose sum is σ = 13077792. Its totient is φ = 12549600.

The previous prime is 12812419. The next prime is 12812473. The reversal of 12812447 is 74421821.

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 12812447 - 2¹⁰ = 12811423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12812417) 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 7 ways as a sum of consecutive naturals, for example, 12353 + ... + 13349.

It is an arithmetic number, because the mean of its divisors is an integer number (1634724).

Almost surely, 2^12812447 is an apocalyptic number.

12812447 is a deficient number, since it is larger than the sum of its proper divisors (265345).

12812447 is an equidigital number, since it uses as much as digits as its factorization.

12812447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its digits is 3584, while the sum is 29.

The square root of 12812447 is about 3579.4478624503. The cubic root of 12812447 is about 233.9972179278.

The spelling of 12812447 in words is "twelve million, eight hundred twelve thousand, four hundred forty-seven".