68738233 has 2 divisors, whose sum is σ = 68738234. Its totient is φ = 68738232.

The previous prime is 68738231. The next prime is 68738249. The reversal of 68738233 is 33283786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34539129 + 34199104 = 5877^2 + 5848^2 .

It is a cyclic number.

It is not a de Polignac number, because 68738233 - 2¹ = 68738231 is a prime.

Together with 68738231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68738231) 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, 34369116 + 34369117.

It is an arithmetic number, because the mean of its divisors is an integer number (34369117).

Almost surely, 2^68738233 is an apocalyptic number.

It is an amenable number.

68738233 is a deficient number, since it is larger than the sum of its proper divisors (1).

68738233 is an equidigital number, since it uses as much as digits as its factorization.

68738233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 68738233 is about 8290.8523687254. The cubic root of 68738233 is about 409.6372619586.

The spelling of 68738233 in words is "sixty-eight million, seven hundred thirty-eight thousand, two hundred thirty-three".