68751317 has 2 divisors, whose sum is σ = 68751318. Its totient is φ = 68751316.

The previous prime is 68751299. The next prime is 68751341. The reversal of 68751317 is 71315786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44209201 + 24542116 = 6649^2 + 4954^2 .

It is a cyclic number.

It is not a de Polignac number, because 68751317 - 2¹⁴ = 68734933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68751377) 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, 34375658 + 34375659.

It is an arithmetic number, because the mean of its divisors is an integer number (34375659).

Almost surely, 2^68751317 is an apocalyptic number.

It is an amenable number.

68751317 is a deficient number, since it is larger than the sum of its proper divisors (1).

68751317 is an equidigital number, since it uses as much as digits as its factorization.

68751317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 68751317 is about 8291.6413935963. The cubic root of 68751317 is about 409.6632511530.

It can be divided in two parts, 6875 and 1317, that added together give a 13-th power (8192 = 2¹³).

The spelling of 68751317 in words is "sixty-eight million, seven hundred fifty-one thousand, three hundred seventeen".