68359847 has 2 divisors, whose sum is σ = 68359848. Its totient is φ = 68359846.

The previous prime is 68359843. The next prime is 68359897. The reversal of 68359847 is 74895386.

It is an a-pointer prime, because the next prime (68359897) can be obtained adding 68359847 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68359847 - 2² = 68359843 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68359795 and 68359804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68359843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34179923 + 34179924.

It is an arithmetic number, because the mean of its divisors is an integer number (34179924).

Almost surely, 2^68359847 is an apocalyptic number.

68359847 is a deficient number, since it is larger than the sum of its proper divisors (1).

68359847 is an equidigital number, since it uses as much as digits as its factorization.

68359847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 50.

The square root of 68359847 is about 8268.0013909046. The cubic root of 68359847 is about 408.8842298416.

The spelling of 68359847 in words is "sixty-eight million, three hundred fifty-nine thousand, eight hundred forty-seven".