68355029 has 2 divisors, whose sum is σ = 68355030. Its totient is φ = 68355028.

The previous prime is 68355019. The next prime is 68355041. The reversal of 68355029 is 92055386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59367025 + 8988004 = 7705^2 + 2998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68355029 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68354983 and 68355001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68355019) 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, 34177514 + 34177515.

It is an arithmetic number, because the mean of its divisors is an integer number (34177515).

Almost surely, 2^68355029 is an apocalyptic number.

It is an amenable number.

68355029 is a deficient number, since it is larger than the sum of its proper divisors (1).

68355029 is an equidigital number, since it uses as much as digits as its factorization.

68355029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 68355029 is about 8267.7100215235. The cubic root of 68355029 is about 408.8746235664.

The spelling of 68355029 in words is "sixty-eight million, three hundred fifty-five thousand, twenty-nine".