9908888099 has 4 divisors (see below), whose sum is σ = 10809696120. Its totient is φ = 9008080080.

The previous prime is 9908888071. The next prime is 9908888147.

9908888099 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9908888099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9908888299) 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, 450403994 + ... + 450404015.

It is an arithmetic number, because the mean of its divisors is an integer number (2702424030).

Almost surely, 2^9908888099 is an apocalyptic number.

9908888099 is a deficient number, since it is larger than the sum of its proper divisors (900808021).

9908888099 is a wasteful number, since it uses less digits than its factorization.

9908888099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900808020.

The product of its (nonzero) digits is 26873856, while the sum is 68.

The square root of 9908888099 is about 99543.3980683802. The cubic root of 9908888099 is about 2147.8715621810.

The spelling of 9908888099 in words is "nine billion, nine hundred eight million, eight hundred eighty-eight thousand, ninety-nine".