800328841321 has 3 divisors (see below), whose sum is σ = 800329735933. Its totient is φ = 800327946710.

The previous prime is 800328841313. The next prime is 800328841393. The reversal of 800328841321 is 123148823008.

It is a happy number.

The square root of 800328841321 is 894611.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 800328841321 - 2³ = 800328841313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800328841421) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 447306 + ... + 1341916.

Almost surely, 2^800328841321 is an apocalyptic number.

800328841321 is the 894611-st square number.

800328841321 is the 447306-th centered octagonal number.

It is an amenable number.

800328841321 is a deficient number, since it is larger than the sum of its proper divisors (894612).

800328841321 is an frugal number, since it uses more digits than its factorization.

800328841321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789222 (or 894611 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 800328841321 in words is "eight hundred billion, three hundred twenty-eight million, eight hundred forty-one thousand, three hundred twenty-one".