16706917 has 2 divisors, whose sum is σ = 16706918. Its totient is φ = 16706916.

The previous prime is 16706897. The next prime is 16706927. The reversal of 16706917 is 71960761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 4866436 = 3441^2 + 2206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16706917 is a prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16706927) 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 as a sum of consecutive naturals, namely, 8353458 + 8353459.

It is an arithmetic number, because the mean of its divisors is an integer number (8353459).

Almost surely, 2^16706917 is an apocalyptic number.

It is an amenable number.

16706917 is a deficient number, since it is larger than the sum of its proper divisors (1).

16706917 is an equidigital number, since it uses as much as digits as its factorization.

16706917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 16706917 is about 4087.4095708651. The cubic root of 16706917 is about 255.6419402216.

The spelling of 16706917 in words is "sixteen million, seven hundred six thousand, nine hundred seventeen".