68323889 has 2 divisors, whose sum is σ = 68323890. Its totient is φ = 68323888.

The previous prime is 68323883. The next prime is 68323897. The reversal of 68323889 is 98832386.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39250225 + 29073664 = 6265^2 + 5392^2 .

It is a cyclic number.

It is not a de Polignac number, because 68323889 - 2¹⁶ = 68258353 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (68323883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34161944 + 34161945.

It is an arithmetic number, because the mean of its divisors is an integer number (34161945).

Almost surely, 2^68323889 is an apocalyptic number.

It is an amenable number.

68323889 is a deficient number, since it is larger than the sum of its proper divisors (1).

68323889 is an equidigital number, since it uses as much as digits as its factorization.

68323889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 47.

The square root of 68323889 is about 8265.8265769371. The cubic root of 68323889 is about 408.8125247962.

The spelling of 68323889 in words is "sixty-eight million, three hundred twenty-three thousand, eight hundred eighty-nine".