289556 has 12 divisors (see below), whose sum is σ = 510720. Its totient is φ = 143640.

The previous prime is 289543. The next prime is 289559. The reversal of 289556 is 655982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289559) 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, 575 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (42560).

2²⁸⁹⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

289556 is a deficient number, since it is larger than the sum of its proper divisors (221164).

289556 is a wasteful number, since it uses less digits than its factorization.

289556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 572 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 289556 is about 538.1040791520. The cubic root of 289556 is about 66.1572619612.

The spelling of 289556 in words is "two hundred eighty-nine thousand, five hundred fifty-six".