3684778 has 16 divisors (see below), whose sum is σ = 5667840. Its totient is φ = 1796256.

The previous prime is 3684763. The next prime is 3684781. The reversal of 3684778 is 8774863.

3684778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 22525 + ... + 22687.

It is an arithmetic number, because the mean of its divisors is an integer number (354240).

Almost surely, 2^3684778 is an apocalyptic number.

3684778 is a deficient number, since it is larger than the sum of its proper divisors (1983062).

3684778 is a wasteful number, since it uses less digits than its factorization.

3684778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381.

The product of its digits is 225792, while the sum is 43.

The square root of 3684778 is about 1919.5775576934. The cubic root of 3684778 is about 154.4556416191.

The spelling of 3684778 in words is "three million, six hundred eighty-four thousand, seven hundred seventy-eight".