68775243 has 16 divisors (see below), whose sum is σ = 94151712. Its totient is φ = 44652000.

The previous prime is 68775229. The next prime is 68775247. The reversal of 68775243 is 34257786.

It is not a de Polignac number, because 68775243 - 2⁴ = 68775227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68775195 and 68775204.

It is not an unprimeable number, because it can be changed into a prime (68775247) 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 in 15 ways as a sum of consecutive naturals, for example, 680893 + ... + 680993.

It is an arithmetic number, because the mean of its divisors is an integer number (5884482).

Almost surely, 2^68775243 is an apocalyptic number.

68775243 is a deficient number, since it is larger than the sum of its proper divisors (25376469).

68775243 is an frugal number, since it uses more digits than its factorization.

68775243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 165 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 68775243 is about 8293.0840463606. The cubic root of 68775243 is about 409.7107676544.

The spelling of 68775243 in words is "sixty-eight million, seven hundred seventy-five thousand, two hundred forty-three".