12340787 has 2 divisors, whose sum is σ = 12340788. Its totient is φ = 12340786.

The previous prime is 12340771. The next prime is 12340789. The reversal of 12340787 is 78704321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12340787 - 2⁴ = 12340771 is a prime.

Together with 12340789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12340789) 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, 6170393 + 6170394.

It is an arithmetic number, because the mean of its divisors is an integer number (6170394).

Almost surely, 2^12340787 is an apocalyptic number.

12340787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12340787 is an equidigital number, since it uses as much as digits as its factorization.

12340787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 12340787 is about 3512.9456300945. The cubic root of 12340787 is about 231.0898933632.

The spelling of 12340787 in words is "twelve million, three hundred forty thousand, seven hundred eighty-seven".