3924684 has 36 divisors (see below), whose sum is σ = 10166520. Its totient is φ = 1275840.

The previous prime is 3924677. The next prime is 3924689. The reversal of 3924684 is 4864293.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3924689) 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 11 ways as a sum of consecutive naturals, for example, 147 + ... + 2805.

Almost surely, 2^3924684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3924684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5083260).

3924684 is an abundant number, since it is smaller than the sum of its proper divisors (6241836).

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

3924684 is a wasteful number, since it uses less digits than its factorization.

3924684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710 (or 2705 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 3924684 is about 1981.0815228052. The cubic root of 3924684 is about 157.7374799919.

The spelling of 3924684 in words is "three million, nine hundred twenty-four thousand, six hundred eighty-four".