289247 has 6 divisors (see below), whose sum is σ = 336528. Its totient is φ = 247884.

The previous prime is 289243. The next prime is 289249. The reversal of 289247 is 742982.

It is not a de Polignac number, because 289247 - 2² = 289243 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

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 289247.

It is not an unprimeable number, because it can be changed into a prime (289241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2903 + ... + 3000.

It is an arithmetic number, because the mean of its divisors is an integer number (56088).

2²⁸⁹²⁴⁷ is an apocalyptic number.

289247 is a deficient number, since it is larger than the sum of its proper divisors (47281).

289247 is an equidigital number, since it uses as much as digits as its factorization.

289247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5917 (or 5910 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 289247 is about 537.8168833348. The cubic root of 289247 is about 66.1337203204.

The spelling of 289247 in words is "two hundred eighty-nine thousand, two hundred forty-seven".