9908 has 6 divisors (see below), whose sum is σ = 17346. Its totient is φ = 4952.

The previous prime is 9907. The next prime is 9923. The reversal of 9908 is 8099.

It is a happy number.

9908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8464 + 1444 = 92^2 + 38^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1235 + ... + 1242.

It is an arithmetic number, because the mean of its divisors is an integer number (2891).

2⁹⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

9908 is a deficient number, since it is larger than the sum of its proper divisors (7438).

9908 is a wasteful number, since it uses less digits than its factorization.

9908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481 (or 2479 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 9908 is about 99.5389371050. The cubic root of 9908 is about 21.4780739152.

The spelling of 9908 in words is "nine thousand, nine hundred eight".