9987413 has 2 divisors, whose sum is σ = 9987414. Its totient is φ = 9987412.

The previous prime is 9987403. The next prime is 9987427. The reversal of 9987413 is 3147899.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7606564 + 2380849 = 2758^2 + 1543^2 .

It is an emirp because it is prime and its reverse (3147899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9987413 - 2⁸ = 9987157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9987403) 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, 4993706 + 4993707.

It is an arithmetic number, because the mean of its divisors is an integer number (4993707).

Almost surely, 2^9987413 is an apocalyptic number.

It is an amenable number.

9987413 is a deficient number, since it is larger than the sum of its proper divisors (1).

9987413 is an equidigital number, since it uses as much as digits as its factorization.

9987413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 9987413 is about 3160.2868540688. The cubic root of 9987413 is about 215.3530381527.

The spelling of 9987413 in words is "nine million, nine hundred eighty-seven thousand, four hundred thirteen".