68068667 has 2 divisors, whose sum is σ = 68068668. Its totient is φ = 68068666.

The previous prime is 68068657. The next prime is 68068669. The reversal of 68068667 is 76686086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68068667 - 2⁶ = 68068603 is a prime.

Together with 68068669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68068669) 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, 34034333 + 34034334.

It is an arithmetic number, because the mean of its divisors is an integer number (34034334).

Almost surely, 2^68068667 is an apocalyptic number.

68068667 is a deficient number, since it is larger than the sum of its proper divisors (1).

68068667 is an equidigital number, since it uses as much as digits as its factorization.

68068667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 68068667 is about 8250.3737491098. The cubic root of 68068667 is about 408.3028536831.

The spelling of 68068667 in words is "sixty-eight million, sixty-eight thousand, six hundred sixty-seven".