3685688 has 8 divisors (see below), whose sum is σ = 6910680. Its totient is φ = 1842840.

The previous prime is 3685687. The next prime is 3685691. The reversal of 3685688 is 8865863.

3685688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230348 + ... + 230363.

It is an arithmetic number, because the mean of its divisors is an integer number (863835).

Almost surely, 2^3685688 is an apocalyptic number.

It is an amenable number.

3685688 is a deficient number, since it is larger than the sum of its proper divisors (3224992).

3685688 is a wasteful number, since it uses less digits than its factorization.

3685688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460717 (or 460713 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 3685688 is about 1919.8145743795. The cubic root of 3685688 is about 154.4683554619.

The spelling of 3685688 in words is "three million, six hundred eighty-five thousand, six hundred eighty-eight".