9888888 has 16 divisors (see below), whose sum is σ = 24722280. Its totient is φ = 3296288.

The previous prime is 9888887. The next prime is 9888889. The reversal of 9888888 is 8888889.

9888888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9888887) and next prime (9888889).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9888881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205995 + ... + 206042.

Almost surely, 2^9888888 is an apocalyptic number.

It is an amenable number.

9888888 is an abundant number, since it is smaller than the sum of its proper divisors (14833392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9888888 is a wasteful number, since it uses less digits than its factorization.

9888888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412046 (or 412042 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 57.

The square root of 9888888 is about 3144.6602360191. The cubic root of 9888888 is about 214.6425500901.

Subtracting from 9888888 its reverse (8888889), we obtain a palindrome (999999).

The spelling of 9888888 in words is "nine million, eight hundred eighty-eight thousand, eight hundred eighty-eight".