89816 has 16 divisors (see below), whose sum is σ = 171600. Its totient is φ = 44064.

The previous prime is 89809. The next prime is 89819. The reversal of 89816 is 61898.

It is an alternating number because its digits alternate between even and odd.

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 89816.

It is not an unprimeable number, because it can be changed into a prime (89819) by changing a digit.

89816 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, 770 + ... + 878.

It is an arithmetic number, because the mean of its divisors is an integer number (10725).

2⁸⁹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

89816 is a deficient number, since it is larger than the sum of its proper divisors (81784).

89816 is a wasteful number, since it uses less digits than its factorization.

89816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 214 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 89816 is about 299.6931764322. The cubic root of 89816 is about 44.7834866860.

The spelling of 89816 in words is "eighty-nine thousand, eight hundred sixteen".