68081347 has 2 divisors, whose sum is σ = 68081348. Its totient is φ = 68081346.

The previous prime is 68081297. The next prime is 68081359. The reversal of 68081347 is 74318086.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68081347 - 2¹⁹ = 67557059 is a prime.

It is not a weakly prime, because it can be changed into another prime (68082347) 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, 34040673 + 34040674.

It is an arithmetic number, because the mean of its divisors is an integer number (34040674).

Almost surely, 2^68081347 is an apocalyptic number.

68081347 is a deficient number, since it is larger than the sum of its proper divisors (1).

68081347 is an equidigital number, since it uses as much as digits as its factorization.

68081347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 68081347 is about 8251.1421633614. The cubic root of 68081347 is about 408.3282053315.

The spelling of 68081347 in words is "sixty-eight million, eighty-one thousand, three hundred forty-seven".