9988127 has 2 divisors, whose sum is σ = 9988128. Its totient is φ = 9988126.

The previous prime is 9988109. The next prime is 9988157. The reversal of 9988127 is 7218899.

It is a weak prime.

It is an emirp because it is prime and its reverse (7218899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9988127 - 2⁶ = 9988063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9988157) 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, 4994063 + 4994064.

It is an arithmetic number, because the mean of its divisors is an integer number (4994064).

Almost surely, 2^9988127 is an apocalyptic number.

9988127 is a deficient number, since it is larger than the sum of its proper divisors (1).

9988127 is an equidigital number, since it uses as much as digits as its factorization.

9988127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 44.

The square root of 9988127 is about 3160.3998164789. The cubic root of 9988127 is about 215.3581698921.

The spelling of 9988127 in words is "nine million, nine hundred eighty-eight thousand, one hundred twenty-seven".