16989104 has 40 divisors (see below), whose sum is σ = 36372672. Its totient is φ = 7622720.

The previous prime is 16989079. The next prime is 16989107. The reversal of 16989104 is 40198961.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16989107) 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 7 ways as a sum of consecutive naturals, for example, 14027 + ... + 15189.

Almost surely, 2^16989104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16989104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18186336).

16989104 is an abundant number, since it is smaller than the sum of its proper divisors (19383568).

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

16989104 is a wasteful number, since it uses less digits than its factorization.

16989104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 16989104 is about 4121.7840797402. The cubic root of 16989104 is about 257.0732126501.

The spelling of 16989104 in words is "sixteen million, nine hundred eighty-nine thousand, one hundred four".