68907667 has 2 divisors, whose sum is σ = 68907668. Its totient is φ = 68907666.

The previous prime is 68907649. The next prime is 68907673. The reversal of 68907667 is 76670986.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68907667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68907667.

It is not a weakly prime, because it can be changed into another prime (68907067) 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, 34453833 + 34453834.

It is an arithmetic number, because the mean of its divisors is an integer number (34453834).

Almost surely, 2^68907667 is an apocalyptic number.

68907667 is a deficient number, since it is larger than the sum of its proper divisors (1).

68907667 is an equidigital number, since it uses as much as digits as its factorization.

68907667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 68907667 is about 8301.0642088831. The cubic root of 68907667 is about 409.9735596671.

The spelling of 68907667 in words is "sixty-eight million, nine hundred seven thousand, six hundred sixty-seven".