68305 has 8 divisors (see below), whose sum is σ = 86400. Its totient is φ = 51696.

The previous prime is 68281. The next prime is 68311. The reversal of 68305 is 50386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68305 - 2¹⁵ = 35537 is a prime.

It is an Ulam number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 265 + ... + 454.

It is an arithmetic number, because the mean of its divisors is an integer number (10800).

2⁶⁸³⁰⁵ is an apocalyptic number.

It is an amenable number.

68305 is a deficient number, since it is larger than the sum of its proper divisors (18095).

68305 is a wasteful number, since it uses less digits than its factorization.

68305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 68305 is about 261.3522527165. The cubic root of 68305 is about 40.8774847533.

It can be divided in two parts, 68 and 305, that added together give a palindrome (373).

The spelling of 68305 in words is "sixty-eight thousand, three hundred five".