289532 has 6 divisors (see below), whose sum is σ = 506688. Its totient is φ = 144764.

The previous prime is 289511. The next prime is 289543. The reversal of 289532 is 235982.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 289495 and 289504.

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 289532.

It is an unprimeable number.

289532 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36188 + ... + 36195.

It is an arithmetic number, because the mean of its divisors is an integer number (84448).

2²⁸⁹⁵³² is an apocalyptic number.

It is an amenable number.

289532 is a deficient number, since it is larger than the sum of its proper divisors (217156).

289532 is a wasteful number, since it uses less digits than its factorization.

289532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72387 (or 72385 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 289532 is about 538.0817781713. The cubic root of 289532 is about 66.1554340843.

The spelling of 289532 in words is "two hundred eighty-nine thousand, five hundred thirty-two".