68811727 has 2 divisors, whose sum is σ = 68811728. Its totient is φ = 68811726.

The previous prime is 68811719. The next prime is 68811793. The reversal of 68811727 is 72711886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68811727 - 2³ = 68811719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68811727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68811707) 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 as a sum of consecutive naturals, namely, 34405863 + 34405864.

It is an arithmetic number, because the mean of its divisors is an integer number (34405864).

Almost surely, 2^68811727 is an apocalyptic number.

68811727 is a deficient number, since it is larger than the sum of its proper divisors (1).

68811727 is an equidigital number, since it uses as much as digits as its factorization.

68811727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 40.

The square root of 68811727 is about 8295.2834189074. The cubic root of 68811727 is about 409.7832028534.

The spelling of 68811727 in words is "sixty-eight million, eight hundred eleven thousand, seven hundred twenty-seven".