209008 has 10 divisors (see below), whose sum is σ = 404984. Its totient is φ = 104496.

The previous prime is 208997. The next prime is 209021. The reversal of 209008 is 800902.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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, 6516 + ... + 6547.

2²⁰⁹⁰⁰⁸ is an apocalyptic number.

It is an amenable number.

209008 is a deficient number, since it is larger than the sum of its proper divisors (195976).

209008 is a wasteful number, since it uses less digits than its factorization.

209008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13071 (or 13065 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 209008 is about 457.1739275156. The cubic root of 209008 is about 59.3454785838.

The spelling of 209008 in words is "two hundred nine thousand, eight".