841666673 has 2 divisors, whose sum is σ = 841666674. Its totient is φ = 841666672.

The previous prime is 841666627. The next prime is 841666687. The reversal of 841666673 is 376666148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 784392049 + 57274624 = 28007^2 + 7568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-841666673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (841666603) 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, 420833336 + 420833337.

It is an arithmetic number, because the mean of its divisors is an integer number (420833337).

Almost surely, 2^841666673 is an apocalyptic number.

It is an amenable number.

841666673 is a deficient number, since it is larger than the sum of its proper divisors (1).

841666673 is an equidigital number, since it uses as much as digits as its factorization.

841666673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The square root of 841666673 is about 29011.4920850342. The cubic root of 841666673 is about 944.1624197605.

The spelling of 841666673 in words is "eight hundred forty-one million, six hundred sixty-six thousand, six hundred seventy-three".