16816673 has 2 divisors, whose sum is σ = 16816674. Its totient is φ = 16816672.

The previous prime is 16816649. The next prime is 16816693. The reversal of 16816673 is 37661861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10804369 + 6012304 = 3287^2 + 2452^2 .

It is an emirp because it is prime and its reverse (37661861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16816673 - 2¹² = 16812577 is a prime.

It is not a weakly prime, because it can be changed into another prime (16816693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8408336 + 8408337.

It is an arithmetic number, because the mean of its divisors is an integer number (8408337).

Almost surely, 2^16816673 is an apocalyptic number.

It is an amenable number.

16816673 is a deficient number, since it is larger than the sum of its proper divisors (1).

16816673 is an equidigital number, since it uses as much as digits as its factorization.

16816673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 16816673 is about 4100.8136997430. The cubic root of 16816673 is about 256.2005315573.

The spelling of 16816673 in words is "sixteen million, eight hundred sixteen thousand, six hundred seventy-three".