68059217 has 2 divisors, whose sum is σ = 68059218. Its totient is φ = 68059216.

The previous prime is 68059193. The next prime is 68059219. The reversal of 68059217 is 71295086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67256401 + 802816 = 8201^2 + 896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68059217 is a prime.

Together with 68059219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68059219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34029608 + 34029609.

It is an arithmetic number, because the mean of its divisors is an integer number (34029609).

Almost surely, 2^68059217 is an apocalyptic number.

It is an amenable number.

68059217 is a deficient number, since it is larger than the sum of its proper divisors (1).

68059217 is an equidigital number, since it uses as much as digits as its factorization.

68059217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 68059217 is about 8249.8010279036. The cubic root of 68059217 is about 408.2839578597.

The spelling of 68059217 in words is "sixty-eight million, fifty-nine thousand, two hundred seventeen".