16994017 has 2 divisors, whose sum is σ = 16994018. Its totient is φ = 16994016.

The previous prime is 16994011. The next prime is 16994027. The reversal of 16994017 is 71049961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12047841 + 4946176 = 3471^2 + 2224^2 .

It is an emirp because it is prime and its reverse (71049961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16994017 - 2³ = 16994009 is a prime.

It is a super-2 number, since 2×16994017² = 577593227592578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16994011) 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 as a sum of consecutive naturals, namely, 8497008 + 8497009.

It is an arithmetic number, because the mean of its divisors is an integer number (8497009).

Almost surely, 2^16994017 is an apocalyptic number.

It is an amenable number.

16994017 is a deficient number, since it is larger than the sum of its proper divisors (1).

16994017 is an equidigital number, since it uses as much as digits as its factorization.

16994017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 16994017 is about 4122.3800164468. The cubic root of 16994017 is about 257.0979908641.

The spelling of 16994017 in words is "sixteen million, nine hundred ninety-four thousand, seventeen".