12812427 has 6 divisors (see below), whose sum is σ = 18506852. Its totient is φ = 8541612.

The previous prime is 12812419. The next prime is 12812473. The reversal of 12812427 is 72421821.

It is not a de Polignac number, because 12812427 - 2³ = 12812419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12812427.

It is not an unprimeable number, because it can be changed into a prime (12812417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711793 + ... + 711810.

Almost surely, 2^12812427 is an apocalyptic number.

12812427 is a deficient number, since it is larger than the sum of its proper divisors (5694425).

12812427 is a wasteful number, since it uses less digits than its factorization.

12812427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423609 (or 1423606 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 12812427 is about 3579.4450687222. The cubic root of 12812427 is about 233.9970961726.

The spelling of 12812427 in words is "twelve million, eight hundred twelve thousand, four hundred twenty-seven".