68389 has 2 divisors, whose sum is σ = 68390. Its totient is φ = 68388.

The previous prime is 68371. The next prime is 68399. The reversal of 68389 is 98386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65025 + 3364 = 255^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 68389 - 2⁷ = 68261 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34194 + 34195.

It is an arithmetic number, because the mean of its divisors is an integer number (34195).

2⁶⁸³⁸⁹ is an apocalyptic number.

It is an amenable number.

68389 is a deficient number, since it is larger than the sum of its proper divisors (1).

68389 is an equidigital number, since it uses as much as digits as its factorization.

68389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 68389 is about 261.5129059913. The cubic root of 68389 is about 40.8942346355.

The spelling of 68389 in words is "sixty-eight thousand, three hundred eighty-nine".