8066881 has 2 divisors, whose sum is σ = 8066882. Its totient is φ = 8066880.

The previous prime is 8066879. The next prime is 8066897. The reversal of 8066881 is 1886608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7890481 + 176400 = 2809^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 8066881 - 2¹ = 8066879 is a prime.

It is a super-2 number, since 2×8066881² = 130149138136322, which contains 22 as substring.

Together with 8066879, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8066881.

It is not a weakly prime, because it can be changed into another prime (8066581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4033440 + 4033441.

It is an arithmetic number, because the mean of its divisors is an integer number (4033441).

Almost surely, 2^8066881 is an apocalyptic number.

It is an amenable number.

8066881 is a deficient number, since it is larger than the sum of its proper divisors (1).

8066881 is an equidigital number, since it uses as much as digits as its factorization.

8066881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 8066881 is about 2840.2255192150. The cubic root of 8066881 is about 200.5557956917. Note that the first 3 decimals are identical.

The spelling of 8066881 in words is "eight million, sixty-six thousand, eight hundred eighty-one".