289996 has 12 divisors (see below), whose sum is σ = 580048. Its totient is φ = 124272.

The previous prime is 289987. The next prime is 289999. The reversal of 289996 is 699982.

289996 is an admirable number.

It is an Ulam number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (289999) by changing a digit.

289996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5151 + ... + 5206.

2²⁸⁹⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

289996 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289996 is a wasteful number, since it uses less digits than its factorization.

289996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368 (or 10366 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 289996 is about 538.5127667939. The cubic root of 289996 is about 66.1907551522.

It can be divided in two parts, 2 and 89996, that added together give a palindrome (89998).

The spelling of 289996 in words is "two hundred eighty-nine thousand, nine hundred ninety-six".