16609672 has 8 divisors (see below), whose sum is σ = 31143150. Its totient is φ = 8304832.

The previous prime is 16609643. The next prime is 16609673. The reversal of 16609672 is 27690661.

It can be written as a sum of positive squares in only one way, i.e., 11383876 + 5225796 = 3374^2 + 2286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (16609673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038097 + ... + 1038112.

Almost surely, 2^16609672 is an apocalyptic number.

It is an amenable number.

16609672 is a deficient number, since it is larger than the sum of its proper divisors (14533478).

16609672 is a wasteful number, since it uses less digits than its factorization.

16609672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076215 (or 2076211 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 16609672 is about 4075.4965341661. The cubic root of 16609672 is about 255.1449745916.

The spelling of 16609672 in words is "sixteen million, six hundred nine thousand, six hundred seventy-two".