68648233 has 2 divisors, whose sum is σ = 68648234. Its totient is φ = 68648232.

The previous prime is 68648231. The next prime is 68648257. The reversal of 68648233 is 33284686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52229529 + 16418704 = 7227^2 + 4052^2 .

It is a cyclic number.

It is not a de Polignac number, because 68648233 - 2¹ = 68648231 is a prime.

Together with 68648231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68648231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34324116 + 34324117.

It is an arithmetic number, because the mean of its divisors is an integer number (34324117).

Almost surely, 2^68648233 is an apocalyptic number.

It is an amenable number.

68648233 is a deficient number, since it is larger than the sum of its proper divisors (1).

68648233 is an equidigital number, since it uses as much as digits as its factorization.

68648233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 40.

The square root of 68648233 is about 8285.4229222171. The cubic root of 68648233 is about 409.4584024699.

The spelling of 68648233 in words is "sixty-eight million, six hundred forty-eight thousand, two hundred thirty-three".