12359987 has 2 divisors, whose sum is σ = 12359988. Its totient is φ = 12359986.

The previous prime is 12359957. The next prime is 12359999. The reversal of 12359987 is 78995321.

It is a strong prime.

It is an emirp because it is prime and its reverse (78995321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12359987 - 2¹⁰ = 12358963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12359957) 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, 6179993 + 6179994.

It is an arithmetic number, because the mean of its divisors is an integer number (6179994).

Almost surely, 2^12359987 is an apocalyptic number.

12359987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12359987 is an equidigital number, since it uses as much as digits as its factorization.

12359987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 44.

The square root of 12359987 is about 3515.6773173885. The cubic root of 12359987 is about 231.2096757544.

The spelling of 12359987 in words is "twelve million, three hundred fifty-nine thousand, nine hundred eighty-seven".