9808 has 10 divisors (see below), whose sum is σ = 19034. Its totient is φ = 4896.

The previous prime is 9803. The next prime is 9811. The reversal of 9808 is 8089.

It can be written as a sum of positive squares in only one way, i.e., 5184 + 4624 = 72^2 + 68^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291 + ... + 322.

2⁹⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

9808 is a deficient number, since it is larger than the sum of its proper divisors (9226).

9808 is a wasteful number, since it uses less digits than its factorization.

9808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 9808 is about 99.0353472251. The cubic root of 9808 is about 21.4055710886.

The spelling of 9808 in words is "nine thousand, eight hundred eight".