289366 has 16 divisors (see below), whose sum is σ = 541440. Its totient is φ = 112680.

The previous prime is 289361. The next prime is 289369. The reversal of 289366 is 663982.

It is a happy number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289361) 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, 786 + ... + 1093.

It is an arithmetic number, because the mean of its divisors is an integer number (33840).

2²⁸⁹³⁶⁶ is an apocalyptic number.

289366 is a deficient number, since it is larger than the sum of its proper divisors (252074).

289366 is a wasteful number, since it uses less digits than its factorization.

289366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899.

The product of its digits is 15552, while the sum is 34.

The square root of 289366 is about 537.9275044093. The cubic root of 289366 is about 66.1427885028.

The spelling of 289366 in words is "two hundred eighty-nine thousand, three hundred sixty-six".