68847688 has 64 divisors (see below), whose sum is σ = 168255360. Its totient is φ = 25629696.

The previous prime is 68847629. The next prime is 68847703. The reversal of 68847688 is 88674886.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9595 + ... + 15157.

It is an arithmetic number, because the mean of its divisors is an integer number (2628990).

Almost surely, 2^68847688 is an apocalyptic number.

68847688 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68847688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84127680).

68847688 is an abundant number, since it is smaller than the sum of its proper divisors (99407672).

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

68847688 is a wasteful number, since it uses less digits than its factorization.

68847688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606 (or 5602 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 55.

The square root of 68847688 is about 8297.4506928333. The cubic root of 68847688 is about 409.8545746389.

The spelling of 68847688 in words is "sixty-eight million, eight hundred forty-seven thousand, six hundred eighty-eight".