68072243 has 2 divisors, whose sum is σ = 68072244. Its totient is φ = 68072242.

The previous prime is 68072237. The next prime is 68072287. The reversal of 68072243 is 34227086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68072243 - 2⁸ = 68071987 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68072143) 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, 34036121 + 34036122.

It is an arithmetic number, because the mean of its divisors is an integer number (34036122).

Almost surely, 2^68072243 is an apocalyptic number.

68072243 is a deficient number, since it is larger than the sum of its proper divisors (1).

68072243 is an equidigital number, since it uses as much as digits as its factorization.

68072243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 68072243 is about 8250.5904637183. The cubic root of 68072243 is about 408.3100036465.

The spelling of 68072243 in words is "sixty-eight million, seventy-two thousand, two hundred forty-three".