9887413 has 2 divisors, whose sum is σ = 9887414. Its totient is φ = 9887412.

The previous prime is 9887407. The next prime is 9887431. The reversal of 9887413 is 3147889.

Together with next prime (9887431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8254129 + 1633284 = 2873^2 + 1278^2 .

It is an emirp because it is prime and its reverse (3147889) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9887413 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9881413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4943706 + 4943707.

It is an arithmetic number, because the mean of its divisors is an integer number (4943707).

Almost surely, 2^9887413 is an apocalyptic number.

It is an amenable number.

9887413 is a deficient number, since it is larger than the sum of its proper divisors (1).

9887413 is an equidigital number, since it uses as much as digits as its factorization.

9887413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 9887413 is about 3144.4257027317. The cubic root of 9887413 is about 214.6318777238.

The spelling of 9887413 in words is "nine million, eight hundred eighty-seven thousand, four hundred thirteen".