9886997 has 2 divisors, whose sum is σ = 9886998. Its totient is φ = 9886996.

The previous prime is 9886993. The next prime is 9887021. The reversal of 9886997 is 7996889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5597956 + 4289041 = 2366^2 + 2071^2 .

It is an emirp because it is prime and its reverse (7996889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9886997 - 2² = 9886993 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9886993) 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, 4943498 + 4943499.

It is an arithmetic number, because the mean of its divisors is an integer number (4943499).

Almost surely, 2^9886997 is an apocalyptic number.

It is an amenable number.

9886997 is a deficient number, since it is larger than the sum of its proper divisors (1).

9886997 is an equidigital number, since it uses as much as digits as its factorization.

9886997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 56.

The square root of 9886997 is about 3144.3595532318. The cubic root of 9886997 is about 214.6288675629.

The spelling of 9886997 in words is "nine million, eight hundred eighty-six thousand, nine hundred ninety-seven".