289895 has 8 divisors (see below), whose sum is σ = 357504. Its totient is φ = 225504.

The previous prime is 289889. The next prime is 289897. The reversal of 289895 is 598982.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289895 - 2¹⁶ = 224359 is a prime.

It is a super-2 number, since 2×289895² = 168078222050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599 + ... + 968.

It is an arithmetic number, because the mean of its divisors is an integer number (44688).

2²⁸⁹⁸⁹⁵ is an apocalyptic number.

289895 is a deficient number, since it is larger than the sum of its proper divisors (67609).

289895 is a wasteful number, since it uses less digits than its factorization.

289895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609.

The product of its digits is 51840, while the sum is 41.

The square root of 289895 is about 538.4189818348. The cubic root of 289895 is about 66.1830699398.

The spelling of 289895 in words is "two hundred eighty-nine thousand, eight hundred ninety-five".