16887017 has 12 divisors (see below), whose sum is σ = 19917396. Its totient is φ = 14273280.

The previous prime is 16887007. The next prime is 16887041. The reversal of 16887017 is 71078861.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 7529536 = 3059^2 + 2744^2 .

It is not a de Polignac number, because 16887017 - 2¹⁰ = 16885993 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16887007) 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 11 ways as a sum of consecutive naturals, for example, 1217 + ... + 5937.

It is an arithmetic number, because the mean of its divisors is an integer number (1659783).

Almost surely, 2^16887017 is an apocalyptic number.

It is an amenable number.

16887017 is a deficient number, since it is larger than the sum of its proper divisors (3030379).

16887017 is an equidigital number, since it uses as much as digits as its factorization.

16887017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808 (or 4801 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 16887017 is about 4109.3815836449. The cubic root of 16887017 is about 256.5572628316.

The spelling of 16887017 in words is "sixteen million, eight hundred eighty-seven thousand, seventeen".