68704 has 24 divisors (see below), whose sum is σ = 143640. Its totient is φ = 32256.

The previous prime is 68699. The next prime is 68711. The reversal of 68704 is 40786.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552 + ... + 664.

It is an arithmetic number, because the mean of its divisors is an integer number (5985).

2⁶⁸⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71820).

68704 is an abundant number, since it is smaller than the sum of its proper divisors (74936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68704 is a wasteful number, since it uses less digits than its factorization.

68704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 68704 is about 262.1144788065. The cubic root of 68704 is about 40.9569248180.

The spelling of 68704 in words is "sixty-eight thousand, seven hundred four".