68630333 has 2 divisors, whose sum is σ = 68630334. Its totient is φ = 68630332.

The previous prime is 68630329. The next prime is 68630339. The reversal of 68630333 is 33303686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68591524 + 38809 = 8282^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 68630333 - 2² = 68630329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68630333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68630339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34315166 + 34315167.

It is an arithmetic number, because the mean of its divisors is an integer number (34315167).

Almost surely, 2^68630333 is an apocalyptic number.

It is an amenable number.

68630333 is a deficient number, since it is larger than the sum of its proper divisors (1).

68630333 is an equidigital number, since it uses as much as digits as its factorization.

68630333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 68630333 is about 8284.3426413929. The cubic root of 68630333 is about 409.4228106699.

The spelling of 68630333 in words is "sixty-eight million, six hundred thirty thousand, three hundred thirty-three".