68608 has 22 divisors (see below), whose sum is σ = 139196. Its totient is φ = 33792.

The previous prime is 68597. The next prime is 68611. The reversal of 68608 is 80686.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991 + ... + 1057.

2⁶⁸⁶⁰⁸ 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 68608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69598).

68608 is an abundant number, since it is smaller than the sum of its proper divisors (70588).

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

68608 is an equidigital number, since it uses as much as digits as its factorization.

68608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 68608 is about 261.9312886999. The cubic root of 68608 is about 40.9378395753.

It can be divided in two parts, 68 and 608, that added together give a palindrome (676).

The spelling of 68608 in words is "sixty-eight thousand, six hundred eight".