289600 has 42 divisors (see below), whose sum is σ = 716534. Its totient is φ = 115200.

The previous prime is 289589. The next prime is 289603. The reversal of 289600 is 6982.

It can be written as a sum of positive squares in 3 ways, for example, as 2304 + 287296 = 48^2 + 536^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289603) by changing a digit.

289600 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 (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1510 + ... + 1690.

2²⁸⁹⁶⁰⁰ is an apocalyptic number.

289600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358267).

289600 is an abundant number, since it is smaller than the sum of its proper divisors (426934).

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

289600 is a wasteful number, since it uses less digits than its factorization.

289600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 289600 is about 538.1449618829. The cubic root of 289600 is about 66.1606128065.

The spelling of 289600 in words is "two hundred eighty-nine thousand, six hundred".