68910727 has 2 divisors, whose sum is σ = 68910728. Its totient is φ = 68910726.

The previous prime is 68910719. The next prime is 68910763. The reversal of 68910727 is 72701986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68910727 - 2³ = 68910719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68910727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68910767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34455363 + 34455364.

It is an arithmetic number, because the mean of its divisors is an integer number (34455364).

Almost surely, 2^68910727 is an apocalyptic number.

68910727 is a deficient number, since it is larger than the sum of its proper divisors (1).

68910727 is an equidigital number, since it uses as much as digits as its factorization.

68910727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 68910727 is about 8301.2485205540. The cubic root of 68910727 is about 409.9796281768.

The spelling of 68910727 in words is "sixty-eight million, nine hundred ten thousand, seven hundred twenty-seven".