16717 has 4 divisors (see below), whose sum is σ = 17020. Its totient is φ = 16416.

The previous prime is 16703. The next prime is 16729. The reversal of 16717 is 71761.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12996 + 3721 = 114^2 + 61^2 .

It is a cyclic number.

It is not a de Polignac number, because 16717 - 2¹¹ = 14669 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 7 and base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42 + ... + 187.

It is an arithmetic number, because the mean of its divisors is an integer number (4255).

2¹⁶⁷¹⁷ is an apocalyptic number.

It is an amenable number.

16717 is a deficient number, since it is larger than the sum of its proper divisors (303).

16717 is an equidigital number, since it uses as much as digits as its factorization.

16717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302.

The product of its digits is 294, while the sum is 22.

The square root of 16717 is about 129.2942380773. The cubic root of 16717 is about 25.5693358432.

The spelling of 16717 in words is "sixteen thousand, seven hundred seventeen".