13331688 has 16 divisors (see below), whose sum is σ = 33329280. Its totient is φ = 4443888.

The previous prime is 13331671. The next prime is 13331701. The reversal of 13331688 is 88613331.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277720 + ... + 277767.

It is an arithmetic number, because the mean of its divisors is an integer number (2083080).

Almost surely, 2^13331688 is an apocalyptic number.

It is an amenable number.

13331688 is an abundant number, since it is smaller than the sum of its proper divisors (19997592).

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

13331688 is a wasteful number, since it uses less digits than its factorization.

13331688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555496 (or 555492 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 13331688 is about 3651.2584132050. The cubic root of 13331688 is about 237.1164661062.

The spelling of 13331688 in words is "thirteen million, three hundred thirty-one thousand, six hundred eighty-eight".