3665828 has 6 divisors (see below), whose sum is σ = 6415206. Its totient is φ = 1832912.

The previous prime is 3665819. The next prime is 3665839. The reversal of 3665828 is 8285663.

It can be written as a sum of positive squares in only one way, i.e., 3541924 + 123904 = 1882^2 + 352^2 .

It is a d-powerful number, because it can be written as 3⁵ + 6² + 6⁸ + 5⁹ + 8 + 2⁵ + 8⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 3665791 and 3665800.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458225 + ... + 458232.

It is an arithmetic number, because the mean of its divisors is an integer number (1069201).

Almost surely, 2^3665828 is an apocalyptic number.

It is an amenable number.

3665828 is a deficient number, since it is larger than the sum of its proper divisors (2749378).

3665828 is a wasteful number, since it uses less digits than its factorization.

3665828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916461 (or 916459 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 3665828 is about 1914.6352132978. The cubic root of 3665828 is about 154.1904093292.

The spelling of 3665828 in words is "three million, six hundred sixty-five thousand, eight hundred twenty-eight".