12322987 has 2 divisors, whose sum is σ = 12322988. Its totient is φ = 12322986.

The previous prime is 12322979. The next prime is 12322993. The reversal of 12322987 is 78922321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12322987 - 2³ = 12322979 is a prime.

It is not a weakly prime, because it can be changed into another prime (12322907) 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, 6161493 + 6161494.

It is an arithmetic number, because the mean of its divisors is an integer number (6161494).

Almost surely, 2^12322987 is an apocalyptic number.

12322987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12322987 is an equidigital number, since it uses as much as digits as its factorization.

12322987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 12322987 is about 3510.4112294716. The cubic root of 12322987 is about 230.9787340730.

The spelling of 12322987 in words is "twelve million, three hundred twenty-two thousand, nine hundred eighty-seven".