800727229 has 2 divisors, whose sum is σ = 800727230. Its totient is φ = 800727228.

The previous prime is 800727227. The next prime is 800727247. The reversal of 800727229 is 922727008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488321604 + 312405625 = 22098^2 + 17675^2 .

It is a cyclic number.

It is not a de Polignac number, because 800727229 - 2¹ = 800727227 is a prime.

Together with 800727227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800727227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400363614 + 400363615.

It is an arithmetic number, because the mean of its divisors is an integer number (400363615).

Almost surely, 2^800727229 is an apocalyptic number.

It is an amenable number.

800727229 is a deficient number, since it is larger than the sum of its proper divisors (1).

800727229 is an equidigital number, since it uses as much as digits as its factorization.

800727229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 800727229 is about 28297.1240411459. The cubic root of 800727229 is about 928.5989730313.

The spelling of 800727229 in words is "eight hundred million, seven hundred twenty-seven thousand, two hundred twenty-nine".