9988907 has 2 divisors, whose sum is σ = 9988908. Its totient is φ = 9988906.

The previous prime is 9988879. The next prime is 9988921. The reversal of 9988907 is 7098899.

9988907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (7098899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9988907 - 2¹² = 9984811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9988007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4994453 + 4994454.

It is an arithmetic number, because the mean of its divisors is an integer number (4994454).

Almost surely, 2^9988907 is an apocalyptic number.

9988907 is a deficient number, since it is larger than the sum of its proper divisors (1).

9988907 is an equidigital number, since it uses as much as digits as its factorization.

9988907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 9988907 is about 3160.5232161780. The cubic root of 9988907 is about 215.3637757146.

The spelling of 9988907 in words is "nine million, nine hundred eighty-eight thousand, nine hundred seven".