289655 has 8 divisors (see below), whose sum is σ = 366000. Its totient is φ = 219456.

The previous prime is 289643. The next prime is 289657. The reversal of 289655 is 556982.

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 289655 - 2¹² = 285559 is a prime.

It is a d-powerful number, because it can be written as 2¹⁸ + 8⁴ + 6⁵ + 9 + 5 + 5⁶ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289655.

It is not an unprimeable number, because it can be changed into a prime (289657) 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, 1430 + ... + 1619.

It is an arithmetic number, because the mean of its divisors is an integer number (45750).

2²⁸⁹⁶⁵⁵ is an apocalyptic number.

289655 is a deficient number, since it is larger than the sum of its proper divisors (76345).

289655 is a wasteful number, since it uses less digits than its factorization.

289655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073.

The product of its digits is 21600, while the sum is 35.

The square root of 289655 is about 538.1960609295. The cubic root of 289655 is about 66.1648008859.

The spelling of 289655 in words is "two hundred eighty-nine thousand, six hundred fifty-five".