16608971 has 4 divisors (see below), whose sum is σ = 16728600. Its totient is φ = 16489344.

The previous prime is 16608941. The next prime is 16608973. The reversal of 16608971 is 17980661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16608971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16608973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59606 + ... + 59883.

It is an arithmetic number, because the mean of its divisors is an integer number (4182150).

Almost surely, 2^16608971 is an apocalyptic number.

16608971 is a deficient number, since it is larger than the sum of its proper divisors (119629).

16608971 is a wasteful number, since it uses less digits than its factorization.

16608971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119628.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 16608971 is about 4075.4105314680. The cubic root of 16608971 is about 255.1413851340.

The spelling of 16608971 in words is "sixteen million, six hundred eight thousand, nine hundred seventy-one".