104289 has 4 divisors (see below), whose sum is σ = 139056. Its totient is φ = 69524.

The previous prime is 104287. The next prime is 104297. The reversal of 104289 is 982401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104289 - 2¹ = 104287 is a prime.

It is a D-number.

104289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (104281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17379 + ... + 17384.

It is an arithmetic number, because the mean of its divisors is an integer number (34764).

2¹⁰⁴²⁸⁹ is an apocalyptic number.

It is an amenable number.

104289 is a deficient number, since it is larger than the sum of its proper divisors (34767).

104289 is an equidigital number, since it uses as much as digits as its factorization.

104289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34766.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 104289 is about 322.9380745592. The cubic root of 104289 is about 47.0702134501.

It can be divided in two parts, 104 and 289, that added together give a palindrome (393).

The spelling of 104289 in words is "one hundred four thousand, two hundred eighty-nine".