12247087 has 2 divisors, whose sum is σ = 12247088. Its totient is φ = 12247086.

The previous prime is 12247051. The next prime is 12247093. The reversal of 12247087 is 78074221.

It is a strong prime.

It is an emirp because it is prime and its reverse (78074221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12247087 is a prime.

It is a super-2 number, since 2×12247087² = 299982279971138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12247097) 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, 6123543 + 6123544.

It is an arithmetic number, because the mean of its divisors is an integer number (6123544).

Almost surely, 2^12247087 is an apocalyptic number.

12247087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12247087 is an equidigital number, since it uses as much as digits as its factorization.

12247087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 12247087 is about 3499.5838324006. The cubic root of 12247087 is about 230.5035407722.

The spelling of 12247087 in words is "twelve million, two hundred forty-seven thousand, eighty-seven".