68558293 has 2 divisors, whose sum is σ = 68558294. Its totient is φ = 68558292.

The previous prime is 68558261. The next prime is 68558311. The reversal of 68558293 is 39285586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36216324 + 32341969 = 6018^2 + 5687^2 .

It is a cyclic number.

It is not a de Polignac number, because 68558293 - 2⁵ = 68558261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68558993) 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, 34279146 + 34279147.

It is an arithmetic number, because the mean of its divisors is an integer number (34279147).

Almost surely, 2^68558293 is an apocalyptic number.

It is an amenable number.

68558293 is a deficient number, since it is larger than the sum of its proper divisors (1).

68558293 is an equidigital number, since it uses as much as digits as its factorization.

68558293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 46.

The square root of 68558293 is about 8279.9935386448. The cubic root of 68558293 is about 409.2795059820.

The spelling of 68558293 in words is "sixty-eight million, five hundred fifty-eight thousand, two hundred ninety-three".