289838 has 8 divisors (see below), whose sum is σ = 437088. Its totient is φ = 144144.

The previous prime is 289837. The next prime is 289841. The reversal of 289838 is 838982.

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

It is a plaindrome in base 14.

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 289838.

It is not an unprimeable number, because it can be changed into a prime (289837) 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, 395 + ... + 857.

It is an arithmetic number, because the mean of its divisors is an integer number (54636).

2²⁸⁹⁸³⁸ is an apocalyptic number.

289838 is a deficient number, since it is larger than the sum of its proper divisors (147250).

289838 is a wasteful number, since it uses less digits than its factorization.

289838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778.

The product of its digits is 27648, while the sum is 38.

The square root of 289838 is about 538.3660464777. The cubic root of 289838 is about 66.1787319527.

The spelling of 289838 in words is "two hundred eighty-nine thousand, eight hundred thirty-eight".