289888 has 12 divisors (see below), whose sum is σ = 570780. Its totient is φ = 144928.

The previous prime is 289871. The next prime is 289889. The reversal of 289888 is 888982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289889) by changing a digit.

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 as a sum of consecutive naturals, namely, 4498 + ... + 4561.

It is an arithmetic number, because the mean of its divisors is an integer number (47565).

2²⁸⁹⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

289888 is a deficient number, since it is larger than the sum of its proper divisors (280892).

289888 is an equidigital number, since it uses as much as digits as its factorization.

289888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069 (or 9061 counting only the distinct ones).

The product of its digits is 73728, while the sum is 43.

The square root of 289888 is about 538.4124812818. The cubic root of 289888 is about 66.1825372352.

It can be divided in two parts, 2 and 89888, that multiplied together give a square (179776 = 424²).

The spelling of 289888 in words is "two hundred eighty-nine thousand, eight hundred eighty-eight".