12394787 has 2 divisors, whose sum is σ = 12394788. Its totient is φ = 12394786.

The previous prime is 12394777. The next prime is 12394807. The reversal of 12394787 is 78749321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12394787 - 2⁴ = 12394771 is a prime.

It is not a weakly prime, because it can be changed into another prime (12394747) 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, 6197393 + 6197394.

It is an arithmetic number, because the mean of its divisors is an integer number (6197394).

Almost surely, 2^12394787 is an apocalyptic number.

12394787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12394787 is an equidigital number, since it uses as much as digits as its factorization.

12394787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 12394787 is about 3520.6230982597. The cubic root of 12394787 is about 231.4264655494.

The spelling of 12394787 in words is "twelve million, three hundred ninety-four thousand, seven hundred eighty-seven".