8090081 has 2 divisors, whose sum is σ = 8090082. Its totient is φ = 8090080.

The previous prime is 8090057. The next prime is 8090083. The reversal of 8090081 is 1800908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5958481 + 2131600 = 2441^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 8090081 - 2²² = 3895777 is a prime.

It is a super-2 number, since 2×8090081² = 130898821173122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 8090083, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8090081.

It is not a weakly prime, because it can be changed into another prime (8090083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4045040 + 4045041.

It is an arithmetic number, because the mean of its divisors is an integer number (4045041).

Almost surely, 2^8090081 is an apocalyptic number.

It is an amenable number.

8090081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8090081 is an equidigital number, since it uses as much as digits as its factorization.

8090081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 8090081 is about 2844.3067696717. The cubic root of 8090081 is about 200.7478749296.

Adding to 8090081 its reverse (1800908), we get a palindrome (9890989).

The spelling of 8090081 in words is "eight million, ninety thousand, eighty-one".