68644241 has 2 divisors, whose sum is σ = 68644242. Its totient is φ = 68644240.

The previous prime is 68644229. The next prime is 68644243. The reversal of 68644241 is 14244686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68541841 + 102400 = 8279^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 68644241 - 2¹⁴ = 68627857 is a prime.

Together with 68644243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68644243) 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, 34322120 + 34322121.

It is an arithmetic number, because the mean of its divisors is an integer number (34322121).

Almost surely, 2^68644241 is an apocalyptic number.

It is an amenable number.

68644241 is a deficient number, since it is larger than the sum of its proper divisors (1).

68644241 is an equidigital number, since it uses as much as digits as its factorization.

68644241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 35.

The square root of 68644241 is about 8285.1820136917. The cubic root of 68644241 is about 409.4504654381.

The spelling of 68644241 in words is "sixty-eight million, six hundred forty-four thousand, two hundred forty-one".