289538 has 8 divisors (see below), whose sum is σ = 440640. Its totient is φ = 142660.

The previous prime is 289511. The next prime is 289543. The reversal of 289538 is 835982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 289498 and 289507.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (55080).

2²⁸⁹⁵³⁸ is an apocalyptic number.

289538 is a deficient number, since it is larger than the sum of its proper divisors (151102).

289538 is a wasteful number, since it uses less digits than its factorization.

289538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112.

The product of its digits is 17280, while the sum is 35.

The square root of 289538 is about 538.0873535031. The cubic root of 289538 is about 66.1558910630.

The spelling of 289538 in words is "two hundred eighty-nine thousand, five hundred thirty-eight".