68085847 has 2 divisors, whose sum is σ = 68085848. Its totient is φ = 68085846.

The previous prime is 68085841. The next prime is 68085851. The reversal of 68085847 is 74858086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68085847 - 2³ = 68085839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68085797 and 68085806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68085841) 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, 34042923 + 34042924.

It is an arithmetic number, because the mean of its divisors is an integer number (34042924).

Almost surely, 2^68085847 is an apocalyptic number.

68085847 is a deficient number, since it is larger than the sum of its proper divisors (1).

68085847 is an equidigital number, since it uses as much as digits as its factorization.

68085847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 68085847 is about 8251.4148483760. The cubic root of 68085847 is about 408.3372016108.

The spelling of 68085847 in words is "sixty-eight million, eighty-five thousand, eight hundred forty-seven".