1003688 has 16 divisors (see below), whose sum is σ = 2150880. Its totient is φ = 430128.

The previous prime is 1003679. The next prime is 1003693. The reversal of 1003688 is 8863001.

It is a super-3 number, since 3×1003688³ = 3033314562581270016, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8906 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (134430).

2^1003688 is an apocalyptic number.

It is an amenable number.

1003688 is an abundant number, since it is smaller than the sum of its proper divisors (1147192).

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

1003688 is a wasteful number, since it uses less digits than its factorization.

1003688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17936 (or 17932 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1003688 is about 1001.8423029599. The cubic root of 1003688 is about 100.1227825162.

Adding to 1003688 its reverse (8863001), we get a palindrome (9866689).

The spelling of 1003688 in words is "one million, three thousand, six hundred eighty-eight".