9908607887 has 2 divisors, whose sum is σ = 9908607888. Its totient is φ = 9908607886.

The previous prime is 9908607871. The next prime is 9908607889. The reversal of 9908607887 is 7887068099.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9908607887 - 2⁴ = 9908607871 is a prime.

Together with 9908607889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9908607889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4954303943 + 4954303944.

It is an arithmetic number, because the mean of its divisors is an integer number (4954303944).

Almost surely, 2^9908607887 is an apocalyptic number.

9908607887 is a deficient number, since it is larger than the sum of its proper divisors (1).

9908607887 is an equidigital number, since it uses as much as digits as its factorization.

9908607887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 62.

The square root of 9908607887 is about 99541.9905718185. The cubic root of 9908607887 is about 2147.8513155414.

The spelling of 9908607887 in words is "nine billion, nine hundred eight million, six hundred seven thousand, eight hundred eighty-seven".