68299193 has 2 divisors, whose sum is σ = 68299194. Its totient is φ = 68299192.

The previous prime is 68299171. The next prime is 68299207. The reversal of 68299193 is 39199286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60637369 + 7661824 = 7787^2 + 2768^2 .

It is a cyclic number.

It is not a de Polignac number, because 68299193 - 2¹⁶ = 68233657 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (68299103) 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, 34149596 + 34149597.

It is an arithmetic number, because the mean of its divisors is an integer number (34149597).

Almost surely, 2^68299193 is an apocalyptic number.

It is an amenable number.

68299193 is a deficient number, since it is larger than the sum of its proper divisors (1).

68299193 is an equidigital number, since it uses as much as digits as its factorization.

68299193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 47.

The square root of 68299193 is about 8264.3325804326. The cubic root of 68299193 is about 408.7632631059.

The spelling of 68299193 in words is "sixty-eight million, two hundred ninety-nine thousand, one hundred ninety-three".