68685 has 16 divisors (see below), whose sum is σ = 116160. Its totient is φ = 34560.

The previous prime is 68683. The next prime is 68687. The reversal of 68685 is 58686.

It is an interprime number because it is at equal distance from previous prime (68683) and next prime (68687).

It is not a de Polignac number, because 68685 - 2¹ = 68683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68683) 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 in 15 ways as a sum of consecutive naturals, for example, 165 + ... + 405.

It is an arithmetic number, because the mean of its divisors is an integer number (7260).

2⁶⁸⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

68685 is a deficient number, since it is larger than the sum of its proper divisors (47475).

68685 is a wasteful number, since it uses less digits than its factorization.

68685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268.

The product of its digits is 11520, while the sum is 33.

The square root of 68685 is about 262.0782325948. The cubic root of 68685 is about 40.9531489421.

Subtracting from 68685 its reverse (58686), we obtain a palindrome (9999).

The spelling of 68685 in words is "sixty-eight thousand, six hundred eighty-five".