289616 has 20 divisors (see below), whose sum is σ = 586272. Its totient is φ = 138336.

The previous prime is 289607. The next prime is 289637. The reversal of 289616 is 616982.

It is a plaindrome in base 14.

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 289616.

It is an unprimeable number.

289616 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, 26 + ... + 761.

2²⁸⁹⁶¹⁶ is an apocalyptic number.

It is an amenable number.

289616 is an abundant number, since it is smaller than the sum of its proper divisors (296656).

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

289616 is a wasteful number, since it uses less digits than its factorization.

289616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 812 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 289616 is about 538.1598275605. The cubic root of 289616 is about 66.1618312115.

The spelling of 289616 in words is "two hundred eighty-nine thousand, six hundred sixteen".