68404067 has 2 divisors, whose sum is σ = 68404068. Its totient is φ = 68404066.

The previous prime is 68404019. The next prime is 68404117. The reversal of 68404067 is 76040486.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68404067 is a prime.

It is not a weakly prime, because it can be changed into another prime (68404267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34202033 + 34202034.

It is an arithmetic number, because the mean of its divisors is an integer number (34202034).

Almost surely, 2^68404067 is an apocalyptic number.

68404067 is a deficient number, since it is larger than the sum of its proper divisors (1).

68404067 is an equidigital number, since it uses as much as digits as its factorization.

68404067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 68404067 is about 8270.6751235918. The cubic root of 68404067 is about 408.9723759497.

The spelling of 68404067 in words is "sixty-eight million, four hundred four thousand, sixty-seven".