3864684 has 12 divisors (see below), whose sum is σ = 9017624. Its totient is φ = 1288224.

The previous prime is 3864683. The next prime is 3864691. The reversal of 3864684 is 4864683.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3864683) 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 3 ways as a sum of consecutive naturals, for example, 161017 + ... + 161040.

Almost surely, 2^3864684 is an apocalyptic number.

It is an amenable number.

3864684 is an abundant number, since it is smaller than the sum of its proper divisors (5152940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3864684 is a wasteful number, since it uses less digits than its factorization.

3864684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322064 (or 322062 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 3864684 is about 1965.8799556433. The cubic root of 3864684 is about 156.9295260266.

Subtracting 3864684 from its reverse (4864683), we obtain a palindrome (999999).

The spelling of 3864684 in words is "three million, eight hundred sixty-four thousand, six hundred eighty-four".