289906 has 8 divisors (see below), whose sum is σ = 445104. Its totient is φ = 141540.

The previous prime is 289897. The next prime is 289937. The reversal of 289906 is 609982.

289906 is digitally balanced in base 3, 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 an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600 + ... + 1771.

It is an arithmetic number, because the mean of its divisors is an integer number (55638).

2²⁸⁹⁹⁰⁶ is an apocalyptic number.

289906 is a deficient number, since it is larger than the sum of its proper divisors (155198).

289906 is a wasteful number, since it uses less digits than its factorization.

289906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 289906 is about 538.4291968309. The cubic root of 289906 is about 66.1839070297.

The spelling of 289906 in words is "two hundred eighty-nine thousand, nine hundred six".