68680243 has 2 divisors, whose sum is σ = 68680244. Its totient is φ = 68680242.

The previous prime is 68680223. The next prime is 68680247. The reversal of 68680243 is 34208686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68680243 - 2⁹ = 68679731 is a prime.

It is not a weakly prime, because it can be changed into another prime (68680247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34340121 + 34340122.

It is an arithmetic number, because the mean of its divisors is an integer number (34340122).

Almost surely, 2^68680243 is an apocalyptic number.

68680243 is a deficient number, since it is larger than the sum of its proper divisors (1).

68680243 is an equidigital number, since it uses as much as digits as its factorization.

68680243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 68680243 is about 8287.3544029443. The cubic root of 68680243 is about 409.5220347307.

The spelling of 68680243 in words is "sixty-eight million, six hundred eighty thousand, two hundred forty-three".