68027688 has 80 divisors (see below), whose sum is σ = 193776660. Its totient is φ = 22291200.

The previous prime is 68027683. The next prime is 68027717. The reversal of 68027688 is 88672086.

It can be written as a sum of positive squares in 2 ways, for example, as 65901924 + 2125764 = 8118^2 + 1458^2 .

It is not an unprimeable number, because it can be changed into a prime (68027681) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38668 + ... + 40388.

Almost surely, 2^68027688 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 68027688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96888330).

68027688 is an abundant number, since it is smaller than the sum of its proper divisors (125748972).

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

68027688 is a wasteful number, since it uses less digits than its factorization.

68027688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 68027688 is about 8247.8899119714. The cubic root of 68027688 is about 408.2209011384.

The spelling of 68027688 in words is "sixty-eight million, twenty-seven thousand, six hundred eighty-eight".