109808 has 10 divisors (see below), whose sum is σ = 212784. Its totient is φ = 54896.

The previous prime is 109807. The next prime is 109819. The reversal of 109808 is 808901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3416 + ... + 3447.

2¹⁰⁹⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

109808 is a deficient number, since it is larger than the sum of its proper divisors (102976).

109808 is an equidigital number, since it uses as much as digits as its factorization.

109808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6871 (or 6865 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 109808 is about 331.3729017286. The cubic root of 109808 is about 47.8863049834.

The spelling of 109808 in words is "one hundred nine thousand, eight hundred eight".