16804841 has 2 divisors, whose sum is σ = 16804842. Its totient is φ = 16804840.

The previous prime is 16804817. The next prime is 16804847. The reversal of 16804841 is 14840861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13579225 + 3225616 = 3685^2 + 1796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16804841 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16804798 and 16804807.

It is not a weakly prime, because it can be changed into another prime (16804847) 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, 8402420 + 8402421.

It is an arithmetic number, because the mean of its divisors is an integer number (8402421).

Almost surely, 2^16804841 is an apocalyptic number.

It is an amenable number.

16804841 is a deficient number, since it is larger than the sum of its proper divisors (1).

16804841 is an equidigital number, since it uses as much as digits as its factorization.

16804841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 16804841 is about 4099.3708053798. The cubic root of 16804841 is about 256.1404309673.

The spelling of 16804841 in words is "sixteen million, eight hundred four thousand, eight hundred forty-one".