816333797 has 2 divisors, whose sum is σ = 816333798. Its totient is φ = 816333796.

The previous prime is 816333787. The next prime is 816333823. The reversal of 816333797 is 797333618.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 754381156 + 61952641 = 27466^2 + 7871^2 .

It is a cyclic number.

It is not a de Polignac number, because 816333797 - 2¹⁰ = 816332773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816333737) 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, 408166898 + 408166899.

It is an arithmetic number, because the mean of its divisors is an integer number (408166899).

Almost surely, 2^816333797 is an apocalyptic number.

It is an amenable number.

816333797 is a deficient number, since it is larger than the sum of its proper divisors (1).

816333797 is an equidigital number, since it uses as much as digits as its factorization.

816333797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 816333797 is about 28571.5557329313. Note that the first 3 decimals coincide. The cubic root of 816333797 is about 934.5931473623.

The spelling of 816333797 in words is "eight hundred sixteen million, three hundred thirty-three thousand, seven hundred ninety-seven".