8321081 has 2 divisors, whose sum is σ = 8321082. Its totient is φ = 8321080.

The previous prime is 8321039. The next prime is 8321111. The reversal of 8321081 is 1801238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5290000 + 3031081 = 2300^2 + 1741^2 .

It is a cyclic number.

It is not a de Polignac number, because 8321081 - 2¹⁰ = 8320057 is a prime.

It is a super-2 number, since 2×8321081² = 138480778017122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8321011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4160540 + 4160541.

It is an arithmetic number, because the mean of its divisors is an integer number (4160541).

Almost surely, 2^8321081 is an apocalyptic number.

It is an amenable number.

8321081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8321081 is an equidigital number, since it uses as much as digits as its factorization.

8321081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 8321081 is about 2884.6283989450. The cubic root of 8321081 is about 202.6406562279.

The spelling of 8321081 in words is "eight million, three hundred twenty-one thousand, eighty-one".