289308 has 12 divisors (see below), whose sum is σ = 675080. Its totient is φ = 96432.

The previous prime is 289297. The next prime is 289309. The reversal of 289308 is 803982.

289308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289309) by changing a digit.

289308 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, 12043 + ... + 12066.

2²⁸⁹³⁰⁸ is an apocalyptic number.

It is an amenable number.

289308 is an abundant number, since it is smaller than the sum of its proper divisors (385772).

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

289308 is a wasteful number, since it uses less digits than its factorization.

289308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24116 (or 24114 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 289308 is about 537.8735910974. The cubic root of 289308 is about 66.1383690270.

The spelling of 289308 in words is "two hundred eighty-nine thousand, three hundred eight".