9908887 has 2 divisors, whose sum is σ = 9908888. Its totient is φ = 9908886.

The previous prime is 9908881. The next prime is 9908897. The reversal of 9908887 is 7888099.

It is a weak prime.

It is an emirp because it is prime and its reverse (7888099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9908887 - 2¹¹ = 9906839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9908887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9908881) 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, 4954443 + 4954444.

It is an arithmetic number, because the mean of its divisors is an integer number (4954444).

Almost surely, 2^9908887 is an apocalyptic number.

9908887 is a deficient number, since it is larger than the sum of its proper divisors (1).

9908887 is an equidigital number, since it uses as much as digits as its factorization.

9908887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 9908887 is about 3147.8384647246. The cubic root of 9908887 is about 214.7871482774.

The spelling of 9908887 in words is "nine million, nine hundred eight thousand, eight hundred eighty-seven".