68656223 has 2 divisors, whose sum is σ = 68656224. Its totient is φ = 68656222.

The previous prime is 68656213. The next prime is 68656241. The reversal of 68656223 is 32265686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68656223 - 2⁴ = 68656207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68656213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34328111 + 34328112.

It is an arithmetic number, because the mean of its divisors is an integer number (34328112).

Almost surely, 2^68656223 is an apocalyptic number.

68656223 is a deficient number, since it is larger than the sum of its proper divisors (1).

68656223 is an equidigital number, since it uses as much as digits as its factorization.

68656223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 68656223 is about 8285.9050803156. The cubic root of 68656223 is about 409.4742875387.

The spelling of 68656223 in words is "sixty-eight million, six hundred fifty-six thousand, two hundred twenty-three".