68856 has 32 divisors (see below), whose sum is σ = 182400. Its totient is φ = 21600.

The previous prime is 68821. The next prime is 68863. The reversal of 68856 is 65886.

It is a super-2 number, since 2×68856² = 9482297472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

68856 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 531.

It is an arithmetic number, because the mean of its divisors is an integer number (5700).

2⁶⁸⁸⁵⁶ 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 68856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91200).

68856 is an abundant number, since it is smaller than the sum of its proper divisors (113544).

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

68856 is a wasteful number, since it uses less digits than its factorization.

68856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 175 counting only the distinct ones).

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

The square root of 68856 is about 262.4042682580. The cubic root of 68856 is about 40.9871067926.

The spelling of 68856 in words is "sixty-eight thousand, eight hundred fifty-six".