68659 has 2 divisors, whose sum is σ = 68660. Its totient is φ = 68658.

The previous prime is 68639. The next prime is 68669. The reversal of 68659 is 95686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68659 - 2⁷ = 68531 is a prime.

It is not a weakly prime, because it can be changed into another prime (68639) 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, 34329 + 34330.

It is an arithmetic number, because the mean of its divisors is an integer number (34330).

2⁶⁸⁶⁵⁹ is an apocalyptic number.

68659 is a deficient number, since it is larger than the sum of its proper divisors (1).

68659 is an equidigital number, since it uses as much as digits as its factorization.

68659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 68659 is about 262.0286243905. The cubic root of 68659 is about 40.9479808256.

It can be divided in two parts, 68 and 659, that added together give a palindrome (727).

The spelling of 68659 in words is "sixty-eight thousand, six hundred fifty-nine".