3688544 has 24 divisors (see below), whose sum is σ = 7365960. Its totient is φ = 1817856.

The previous prime is 3688543. The next prime is 3688549. The reversal of 3688544 is 4458863.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3688498 and 3688507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688543) 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, 1547 + ... + 3125.

It is an arithmetic number, because the mean of its divisors is an integer number (306915).

Almost surely, 2^3688544 is an apocalyptic number.

It is an amenable number.

3688544 is a deficient number, since it is larger than the sum of its proper divisors (3677416).

3688544 is a wasteful number, since it uses less digits than its factorization.

3688544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1654 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 3688544 is about 1920.5582521757. The cubic root of 3688544 is about 154.5082437832.

The spelling of 3688544 in words is "three million, six hundred eighty-eight thousand, five hundred forty-four".