209006 has 8 divisors (see below), whose sum is σ = 358320. Its totient is φ = 89568.

The previous prime is 208997. The next prime is 209021. The reversal of 209006 is 600902.

209006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

209006 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7451 + ... + 7478.

It is an arithmetic number, because the mean of its divisors is an integer number (44790).

2²⁰⁹⁰⁰⁶ is an apocalyptic number.

209006 is a deficient number, since it is larger than the sum of its proper divisors (149314).

209006 is a wasteful number, since it uses less digits than its factorization.

209006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14938.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 209006 is about 457.1717401590. The cubic root of 209006 is about 59.3452892906.

Adding to 209006 its reverse (600902), we get a palindrome (809908).

The spelling of 209006 in words is "two hundred nine thousand, six".