16956671 has 2 divisors, whose sum is σ = 16956672. Its totient is φ = 16956670.

The previous prime is 16956649. The next prime is 16956691. The reversal of 16956671 is 17665961.

It is a strong prime.

It is an emirp because it is prime and its reverse (17665961) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16956671 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16956601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8478335 + 8478336.

It is an arithmetic number, because the mean of its divisors is an integer number (8478336).

Almost surely, 2^16956671 is an apocalyptic number.

16956671 is a deficient number, since it is larger than the sum of its proper divisors (1).

16956671 is an equidigital number, since it uses as much as digits as its factorization.

16956671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 41.

The square root of 16956671 is about 4117.8478602299. The cubic root of 16956671 is about 256.9095201485.

The spelling of 16956671 in words is "sixteen million, nine hundred fifty-six thousand, six hundred seventy-one".