289849 has 8 divisors (see below), whose sum is σ = 338688. Its totient is φ = 242880.

The previous prime is 289847. The next prime is 289853. The reversal of 289849 is 948982.

It is a happy number.

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 289849 - 2¹ = 289847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289841) 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, 112 + ... + 769.

It is an arithmetic number, because the mean of its divisors is an integer number (42336).

2²⁸⁹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

289849 is a deficient number, since it is larger than the sum of its proper divisors (48839).

289849 is an equidigital number, since it uses as much as digits as its factorization.

289849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935.

The product of its digits is 41472, while the sum is 40.

The square root of 289849 is about 538.3762624782. The cubic root of 289849 is about 66.1795691524.

The spelling of 289849 in words is "two hundred eighty-nine thousand, eight hundred forty-nine".