16887716 has 12 divisors (see below), whose sum is σ = 29770188. Its totient is φ = 8381952.

The previous prime is 16887707. The next prime is 16887721. The reversal of 16887716 is 61778861.

16887716 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in 2 ways, for example, as 4426816 + 12460900 = 2104^2 + 3530^2 .

It is a congruent number.

It is an unprimeable number.

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, 14861 + ... + 15956.

It is an arithmetic number, because the mean of its divisors is an integer number (2480849).

Almost surely, 2^16887716 is an apocalyptic number.

It is an amenable number.

16887716 is a deficient number, since it is larger than the sum of its proper divisors (12882472).

16887716 is a wasteful number, since it uses less digits than its factorization.

16887716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30958 (or 30956 counting only the distinct ones).

The product of its digits is 112896, while the sum is 44.

The square root of 16887716 is about 4109.4666320582. The cubic root of 16887716 is about 256.5608026526.

The spelling of 16887716 in words is "sixteen million, eight hundred eighty-seven thousand, seven hundred sixteen".