68335387 has 2 divisors, whose sum is σ = 68335388. Its totient is φ = 68335386.

The previous prime is 68335363. The next prime is 68335403. The reversal of 68335387 is 78353386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68335387 - 2¹⁹ = 67811099 is a prime.

It is not a weakly prime, because it can be changed into another prime (68335307) 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, 34167693 + 34167694.

It is an arithmetic number, because the mean of its divisors is an integer number (34167694).

Almost surely, 2^68335387 is an apocalyptic number.

68335387 is a deficient number, since it is larger than the sum of its proper divisors (1).

68335387 is an equidigital number, since it uses as much as digits as its factorization.

68335387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 68335387 is about 8266.5220619073. The cubic root of 68335387 is about 408.8354560765.

The spelling of 68335387 in words is "sixty-eight million, three hundred thirty-five thousand, three hundred eighty-seven".