16608789 has 6 divisors (see below), whose sum is σ = 23990486. Its totient is φ = 11072520.

The previous prime is 16608773. The next prime is 16608791. The reversal of 16608789 is 98780661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 7518564 = 3015^2 + 2742^2 .

It is not a de Polignac number, because 16608789 - 2⁴ = 16608773 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 (16608749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 922702 + ... + 922719.

Almost surely, 2^16608789 is an apocalyptic number.

It is an amenable number.

16608789 is a deficient number, since it is larger than the sum of its proper divisors (7381697).

16608789 is a wasteful number, since it uses less digits than its factorization.

16608789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845427 (or 1845424 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 16608789 is about 4075.3882023680. The cubic root of 16608789 is about 255.1404531898.

It can be divided in two parts, 166087 and 89, that added together give a triangular number (166176 = T₅₇₆).

The spelling of 16608789 in words is "sixteen million, six hundred eight thousand, seven hundred eighty-nine".