9899999908 has 12 divisors (see below), whose sum is σ = 17727907120. Its totient is φ = 4834883592.

The previous prime is 9899999897. The next prime is 9899999939. The reversal of 9899999908 is 8099999989.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28778898 + ... + 28779241.

Almost surely, 2^9899999908 is an apocalyptic number.

It is an amenable number.

9899999908 is a deficient number, since it is larger than the sum of its proper divisors (7827907212).

9899999908 is a wasteful number, since it uses less digits than its factorization.

9899999908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57558186 (or 57558184 counting only the distinct ones).

The product of its (nonzero) digits is 306110016, while the sum is 79.

The square root of 9899999908 is about 99498.7432483446. The cubic root of 9899999908 is about 2147.2291623676.

The spelling of 9899999908 in words is "nine billion, eight hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eight".