208089 has 20 divisors (see below), whose sum is σ = 356224. Its totient is φ = 118584.

The previous prime is 208073. The next prime is 208099. The reversal of 208089 is 980802.

It is not a de Polignac number, because 208089 - 2⁴ = 208073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

208089 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 384 + ... + 750.

2²⁰⁸⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

208089 is a deficient number, since it is larger than the sum of its proper divisors (148135).

208089 is an equidigital number, since it uses as much as digits as its factorization.

208089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 208089 is about 456.1677323091. The cubic root of 208089 is about 59.2583708731.

The spelling of 208089 in words is "two hundred eight thousand, eighty-nine".