289673 has 4 divisors (see below), whose sum is σ = 297540. Its totient is φ = 281808.

The previous prime is 289669. The next prime is 289717. The reversal of 289673 is 376982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376982 = 2 ⋅188491.

It can be written as a sum of positive squares in 2 ways, for example, as 150544 + 139129 = 388^2 + 373^2 .

It is a cyclic number.

It is not a de Polignac number, because 289673 - 2² = 289669 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (289603) 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, 3878 + ... + 3951.

It is an arithmetic number, because the mean of its divisors is an integer number (74385).

2²⁸⁹⁶⁷³ is an apocalyptic number.

It is an amenable number.

289673 is a deficient number, since it is larger than the sum of its proper divisors (7867).

289673 is an equidigital number, since it uses as much as digits as its factorization.

289673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866.

The product of its digits is 18144, while the sum is 35.

The square root of 289673 is about 538.2127832001. The cubic root of 289673 is about 66.1661714149.

The spelling of 289673 in words is "two hundred eighty-nine thousand, six hundred seventy-three".