1068688 has 20 divisors (see below), whose sum is σ = 2192940. Its totient is φ = 502784.

The previous prime is 1068677. The next prime is 1068701. The reversal of 1068688 is 8868601.

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 589824 = 692^2 + 768^2 .

It is a super-2 number, since 2×1068688² = 2284188082688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693 + ... + 2236.

It is an arithmetic number, because the mean of its divisors is an integer number (109647).

2^1068688 is an apocalyptic number.

It is an amenable number.

1068688 is an abundant number, since it is smaller than the sum of its proper divisors (1124252).

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

1068688 is a wasteful number, since it uses less digits than its factorization.

1068688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954 (or 3948 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1068688 is about 1033.7736696202. The cubic root of 1068688 is about 102.2390905440.

The spelling of 1068688 in words is "one million, sixty-eight thousand, six hundred eighty-eight".