89818816 has 28 divisors (see below), whose sum is σ = 178554888. Its totient is φ = 44828672.

The previous prime is 89818789. The next prime is 89818819. The reversal of 89818816 is 61881898.

It is a self number, because there is not a number n which added to its sum of digits gives 89818816.

It is not an unprimeable number, because it can be changed into a prime (89818819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52080 + ... + 53776.

Almost surely, 2^89818816 is an apocalyptic number.

It is an amenable number.

89818816 is a deficient number, since it is larger than the sum of its proper divisors (88736072).

89818816 is a wasteful number, since it uses less digits than its factorization.

89818816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536 (or 2526 counting only the distinct ones).

The product of its digits is 221184, while the sum is 49.

The square root of 89818816 is about 9477.2789343777. The cubic root of 89818816 is about 447.8395471319.

The spelling of 89818816 in words is "eighty-nine million, eight hundred eighteen thousand, eight hundred sixteen".