808959321 has 12 divisors (see below), whose sum is σ = 1208790180. Its totient is φ = 520709280.

The previous prime is 808959317. The next prime is 808959323. The reversal of 808959321 is 123959808.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 304328025 + 504631296 = 17445^2 + 22464^2 .

It is not a de Polignac number, because 808959321 - 2² = 808959317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (808959323) 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 in 11 ways as a sum of consecutive naturals, for example, 1549470 + ... + 1549991.

It is an arithmetic number, because the mean of its divisors is an integer number (100732515).

Almost surely, 2^808959321 is an apocalyptic number.

It is an amenable number.

808959321 is a deficient number, since it is larger than the sum of its proper divisors (399830859).

808959321 is a wasteful number, since it uses less digits than its factorization.

808959321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099496 (or 3099493 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 808959321 is about 28442.2101989279. The cubic root of 808959321 is about 931.7703669157.

The spelling of 808959321 in words is "eight hundred eight million, nine hundred fifty-nine thousand, three hundred twenty-one".