289446685 has 8 divisors (see below), whose sum is σ = 378912096. Its totient is φ = 210506640.

The previous prime is 289446683. The next prime is 289446701. The reversal of 289446685 is 586644982.

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

It is not a de Polignac number, because 289446685 - 2¹ = 289446683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289446683) 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, 2631279 + ... + 2631388.

It is an arithmetic number, because the mean of its divisors is an integer number (47364012).

Almost surely, 2^289446685 is an apocalyptic number.

It is an amenable number.

289446685 is a deficient number, since it is larger than the sum of its proper divisors (89465411).

289446685 is a wasteful number, since it uses less digits than its factorization.

289446685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262683.

The product of its digits is 3317760, while the sum is 52.

The square root of 289446685 is about 17013.1327215184. The cubic root of 289446685 is about 661.4893554489.

The spelling of 289446685 in words is "two hundred eighty-nine million, four hundred forty-six thousand, six hundred eighty-five".