3920684 has 24 divisors (see below), whose sum is σ = 7210560. Its totient is φ = 1862784.

The previous prime is 3920681. The next prime is 3920687. The reversal of 3920684 is 4860293.

It is an interprime number because it is at equal distance from previous prime (3920681) and next prime (3920687).

It is a d-powerful number, because it can be written as 3⁷ + 9⁴ + 2¹⁷ + 0 + 6⁸ + 8⁷ + 4⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 3920684.

It is not an unprimeable number, because it can be changed into a prime (3920681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8237 + ... + 8699.

It is an arithmetic number, because the mean of its divisors is an integer number (300440).

Almost surely, 2^3920684 is an apocalyptic number.

It is an amenable number.

3920684 is a deficient number, since it is larger than the sum of its proper divisors (3289876).

3920684 is a wasteful number, since it uses less digits than its factorization.

3920684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3920684 is about 1980.0717158729. The cubic root of 3920684 is about 157.6838736043.

The spelling of 3920684 in words is "three million, nine hundred twenty thousand, six hundred eighty-four".