289608 has 32 divisors (see below), whose sum is σ = 790560. Its totient is φ = 87680.

The previous prime is 289607. The next prime is 289637. The reversal of 289608 is 806982.

289608 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (289603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285 + ... + 812.

It is an arithmetic number, because the mean of its divisors is an integer number (24705).

2²⁸⁹⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

289608 is an abundant number, since it is smaller than the sum of its proper divisors (500952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289608 is a wasteful number, since it uses less digits than its factorization.

289608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 289608 is about 538.1523947731. The cubic root of 289608 is about 66.1612220146.

The spelling of 289608 in words is "two hundred eighty-nine thousand, six hundred eight".