3708728 has 16 divisors (see below), whose sum is σ = 7085880. Its totient is φ = 1819168.

The previous prime is 3708709. The next prime is 3708751. The reversal of 3708728 is 8278073.

It is a happy number.

3708728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3950 + ... + 4797.

Almost surely, 2^3708728 is an apocalyptic number.

It is an amenable number.

3708728 is a deficient number, since it is larger than the sum of its proper divisors (3377152).

3708728 is a wasteful number, since it uses less digits than its factorization.

3708728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8806 (or 8802 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 3708728 is about 1925.8058053708. The cubic root of 3708728 is about 154.7895583277.

The spelling of 3708728 in words is "three million, seven hundred eight thousand, seven hundred twenty-eight".