68443259 has 2 divisors, whose sum is σ = 68443260. Its totient is φ = 68443258.

The previous prime is 68443217. The next prime is 68443261. The reversal of 68443259 is 95234486.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68443259 is a prime.

Together with 68443261, 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 (68443279) 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, 34221629 + 34221630.

It is an arithmetic number, because the mean of its divisors is an integer number (34221630).

Almost surely, 2^68443259 is an apocalyptic number.

68443259 is a deficient number, since it is larger than the sum of its proper divisors (1).

68443259 is an equidigital number, since it uses as much as digits as its factorization.

68443259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The square root of 68443259 is about 8273.0441193070. The cubic root of 68443259 is about 409.0504677254.

The spelling of 68443259 in words is "sixty-eight million, four hundred forty-three thousand, two hundred fifty-nine".