68758117 has 2 divisors, whose sum is σ = 68758118. Its totient is φ = 68758116.

The previous prime is 68758103. The next prime is 68758121. The reversal of 68758117 is 71185786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55442916 + 13315201 = 7446^2 + 3649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68758117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68758717) 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, 34379058 + 34379059.

It is an arithmetic number, because the mean of its divisors is an integer number (34379059).

Almost surely, 2^68758117 is an apocalyptic number.

It is an amenable number.

68758117 is a deficient number, since it is larger than the sum of its proper divisors (1).

68758117 is an equidigital number, since it uses as much as digits as its factorization.

68758117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 43.

The square root of 68758117 is about 8292.0514349587. The cubic root of 68758117 is about 409.6767569222.

The spelling of 68758117 in words is "sixty-eight million, seven hundred fifty-eight thousand, one hundred seventeen".