68966717 has 2 divisors, whose sum is σ = 68966718. Its totient is φ = 68966716.

The previous prime is 68966707. The next prime is 68966747. The reversal of 68966717 is 71766986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49084036 + 19882681 = 7006^2 + 4459^2 .

It is a cyclic number.

It is not a de Polignac number, because 68966717 - 2⁴ = 68966701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68966707) 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, 34483358 + 34483359.

It is an arithmetic number, because the mean of its divisors is an integer number (34483359).

Almost surely, 2^68966717 is an apocalyptic number.

It is an amenable number.

68966717 is a deficient number, since it is larger than the sum of its proper divisors (1).

68966717 is an equidigital number, since it uses as much as digits as its factorization.

68966717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The square root of 68966717 is about 8304.6202200944. The cubic root of 68966717 is about 410.0906343354.

The spelling of 68966717 in words is "sixty-eight million, nine hundred sixty-six thousand, seven hundred seventeen".