12006427 has 2 divisors, whose sum is σ = 12006428. Its totient is φ = 12006426.

The previous prime is 12006409. The next prime is 12006431. The reversal of 12006427 is 72460021.

It is a strong prime.

It is an emirp because it is prime and its reverse (72460021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12006427 - 2¹⁵ = 11973659 is a prime.

It is a super-3 number, since 3×12006427³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12006398 and 12006407.

It is not a weakly prime, because it can be changed into another prime (12001427) 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 as a sum of consecutive naturals, namely, 6003213 + 6003214.

It is an arithmetic number, because the mean of its divisors is an integer number (6003214).

Almost surely, 2^12006427 is an apocalyptic number.

12006427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12006427 is an equidigital number, since it uses as much as digits as its factorization.

12006427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 12006427 is about 3465.0291485065. The cubic root of 12006427 is about 228.9837138739.

Adding to 12006427 its reverse (72460021), we get a palindrome (84466448).

The spelling of 12006427 in words is "twelve million, six thousand, four hundred twenty-seven".