8068681 has 2 divisors, whose sum is σ = 8068682. Its totient is φ = 8068680.

The previous prime is 8068633. The next prime is 8068703. The reversal of 8068681 is 1868608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7952400 + 116281 = 2820^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 8068681 - 2¹³ = 8060489 is a prime.

It is a super-2 number, since 2×8068681² = 130207226159522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8068681.

It is not a weakly prime, because it can be changed into another prime (8068481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4034340 + 4034341.

It is an arithmetic number, because the mean of its divisors is an integer number (4034341).

Almost surely, 2^8068681 is an apocalyptic number.

It is an amenable number.

8068681 is a deficient number, since it is larger than the sum of its proper divisors (1).

8068681 is an equidigital number, since it uses as much as digits as its factorization.

8068681 is an odious number, because the sum of its binary digits is odd.

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

The square root of 8068681 is about 2840.5423777863. The cubic root of 8068681 is about 200.5707115592.

The spelling of 8068681 in words is "eight million, sixty-eight thousand, six hundred eighty-one".