68442167 has 2 divisors, whose sum is σ = 68442168. Its totient is φ = 68442166.

The previous prime is 68442151. The next prime is 68442169. The reversal of 68442167 is 76124486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68442167 - 2⁴ = 68442151 is a prime.

Together with 68442169, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68442167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68442169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34221083 + 34221084.

It is an arithmetic number, because the mean of its divisors is an integer number (34221084).

Almost surely, 2^68442167 is an apocalyptic number.

68442167 is a deficient number, since it is larger than the sum of its proper divisors (1).

68442167 is an equidigital number, since it uses as much as digits as its factorization.

68442167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 38.

The square root of 68442167 is about 8272.9781215715. The cubic root of 68442167 is about 409.0482922714.

The spelling of 68442167 in words is "sixty-eight million, four hundred forty-two thousand, one hundred sixty-seven".