68147707 has 2 divisors, whose sum is σ = 68147708. Its totient is φ = 68147706.

The previous prime is 68147687. The next prime is 68147711. The reversal of 68147707 is 70774186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68147707 - 2¹¹ = 68145659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68147707.

It is not a weakly prime, because it can be changed into another prime (68141707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34073853 + 34073854.

It is an arithmetic number, because the mean of its divisors is an integer number (34073854).

Almost surely, 2^68147707 is an apocalyptic number.

68147707 is a deficient number, since it is larger than the sum of its proper divisors (1).

68147707 is an equidigital number, since it uses as much as digits as its factorization.

68147707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 68147707 is about 8255.1624454035. The cubic root of 68147707 is about 408.4608303055.

The spelling of 68147707 in words is "sixty-eight million, one hundred forty-seven thousand, seven hundred seven".