3687688 has 16 divisors (see below), whose sum is σ = 6979500. Its totient is φ = 1826496.

The previous prime is 3687683. The next prime is 3687703. The reversal of 3687688 is 8867863.

It can be written as a sum of positive squares in 2 ways, for example, as 2951524 + 736164 = 1718^2 + 858^2 .

It is not an unprimeable number, because it can be changed into a prime (3687683) by changing a digit.

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, 1243 + ... + 2986.

Almost surely, 2^3687688 is an apocalyptic number.

It is an amenable number.

3687688 is a deficient number, since it is larger than the sum of its proper divisors (3291812).

3687688 is a wasteful number, since it uses less digits than its factorization.

3687688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344 (or 4340 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 3687688 is about 1920.3353873738. The cubic root of 3687688 is about 154.4962906215.

The spelling of 3687688 in words is "three million, six hundred eighty-seven thousand, six hundred eighty-eight".