16985963 has 2 divisors, whose sum is σ = 16985964. Its totient is φ = 16985962.

The previous prime is 16985957. The next prime is 16985971. The reversal of 16985963 is 36958961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16985963 - 2¹⁰ = 16984939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16985953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8492981 + 8492982.

It is an arithmetic number, because the mean of its divisors is an integer number (8492982).

Almost surely, 2^16985963 is an apocalyptic number.

16985963 is a deficient number, since it is larger than the sum of its proper divisors (1).

16985963 is an equidigital number, since it uses as much as digits as its factorization.

16985963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 47.

The square root of 16985963 is about 4121.4030378016. The cubic root of 16985963 is about 257.0573688338.

The spelling of 16985963 in words is "sixteen million, nine hundred eighty-five thousand, nine hundred sixty-three".