206089 has 8 divisors (see below), whose sum is σ = 225792. Its totient is φ = 186960.

The previous prime is 206083. The next prime is 206123. The reversal of 206089 is 980602.

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

It is a cyclic number.

It is not a de Polignac number, because 206089 - 2³ = 206081 is a prime.

It is a Duffinian number.

206089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (206081) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 984 + ... + 1174.

It is an arithmetic number, because the mean of its divisors is an integer number (28224).

2²⁰⁶⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

206089 is a deficient number, since it is larger than the sum of its proper divisors (19703).

206089 is a wasteful number, since it uses less digits than its factorization.

206089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 206089 is about 453.9702633433. The cubic root of 206089 is about 59.0679099306.

The spelling of 206089 in words is "two hundred six thousand, eighty-nine".