189808 has 10 divisors (see below), whose sum is σ = 367784. Its totient is φ = 94896.

The previous prime is 189799. The next prime is 189817. The reversal of 189808 is 808981.

189808 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189799) and next prime (189817).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5916 + ... + 5947.

2¹⁸⁹⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

189808 is a deficient number, since it is larger than the sum of its proper divisors (177976).

189808 is a wasteful number, since it uses less digits than its factorization.

189808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11871 (or 11865 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 189808 is about 435.6695995821. The cubic root of 189808 is about 57.4695995570.

The spelling of 189808 in words is "one hundred eighty-nine thousand, eight hundred eight".