68401871 has 2 divisors, whose sum is σ = 68401872. Its totient is φ = 68401870.

The previous prime is 68401867. The next prime is 68401933. The reversal of 68401871 is 17810486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68401871 - 2² = 68401867 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68401811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34200935 + 34200936.

It is an arithmetic number, because the mean of its divisors is an integer number (34200936).

Almost surely, 2^68401871 is an apocalyptic number.

68401871 is a deficient number, since it is larger than the sum of its proper divisors (1).

68401871 is an equidigital number, since it uses as much as digits as its factorization.

68401871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 68401871 is about 8270.5423643193. The cubic root of 68401871 is about 408.9679994411.

The spelling of 68401871 in words is "sixty-eight million, four hundred one thousand, eight hundred seventy-one".