68838089 has 2 divisors, whose sum is σ = 68838090. Its totient is φ = 68838088.

The previous prime is 68838079. The next prime is 68838097. The reversal of 68838089 is 98083886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67108864 + 1729225 = 8192^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 68838089 - 2¹² = 68833993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (68838059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34419044 + 34419045.

It is an arithmetic number, because the mean of its divisors is an integer number (34419045).

Almost surely, 2^68838089 is an apocalyptic number.

It is an amenable number.

68838089 is a deficient number, since it is larger than the sum of its proper divisors (1).

68838089 is an equidigital number, since it uses as much as digits as its factorization.

68838089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 68838089 is about 8296.8722419958. The cubic root of 68838089 is about 409.8355259386.

The spelling of 68838089 in words is "sixty-eight million, eight hundred thirty-eight thousand, eighty-nine".