68558741 has 2 divisors, whose sum is σ = 68558742. Its totient is φ = 68558740.

The previous prime is 68558729. The next prime is 68558761. The reversal of 68558741 is 14785586.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68541841 + 16900 = 8279^2 + 130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68558741 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68558692 and 68558701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68558761) 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, 34279370 + 34279371.

It is an arithmetic number, because the mean of its divisors is an integer number (34279371).

Almost surely, 2^68558741 is an apocalyptic number.

It is an amenable number.

68558741 is a deficient number, since it is larger than the sum of its proper divisors (1).

68558741 is an equidigital number, since it uses as much as digits as its factorization.

68558741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 44.

The square root of 68558741 is about 8280.0205917618. The cubic root of 68558741 is about 409.2803974706.

The spelling of 68558741 in words is "sixty-eight million, five hundred fifty-eight thousand, seven hundred forty-one".