12207427 has 2 divisors, whose sum is σ = 12207428. Its totient is φ = 12207426.

The previous prime is 12207413. The next prime is 12207431. The reversal of 12207427 is 72470221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12207427 is a prime.

It is equal to p₈₀₀₇₂₈ and since 12207427 and 800728 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12207487) 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 as a sum of consecutive naturals, namely, 6103713 + 6103714.

It is an arithmetic number, because the mean of its divisors is an integer number (6103714).

Almost surely, 2^12207427 is an apocalyptic number.

12207427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12207427 is an equidigital number, since it uses as much as digits as its factorization.

12207427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 12207427 is about 3493.9128495141. The cubic root of 12207427 is about 230.2544568821.

Adding to 12207427 its reverse (72470221), we get a palindrome (84677648).

The spelling of 12207427 in words is "twelve million, two hundred seven thousand, four hundred twenty-seven".