816734573 has 2 divisors, whose sum is σ = 816734574. Its totient is φ = 816734572.

The previous prime is 816734549. The next prime is 816734579. The reversal of 816734573 is 375437618.

816734573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 815787844 + 946729 = 28562^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 816734573 - 2¹⁸ = 816472429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816734579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408367286 + 408367287.

It is an arithmetic number, because the mean of its divisors is an integer number (408367287).

Almost surely, 2^816734573 is an apocalyptic number.

It is an amenable number.

816734573 is a deficient number, since it is larger than the sum of its proper divisors (1).

816734573 is an equidigital number, since it uses as much as digits as its factorization.

816734573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 44.

The square root of 816734573 is about 28578.5684211089. The cubic root of 816734573 is about 934.7460673339.

The spelling of 816734573 in words is "eight hundred sixteen million, seven hundred thirty-four thousand, five hundred seventy-three".