3984756 has 24 divisors (see below), whose sum is σ = 9787680. Its totient is φ = 1258272.

The previous prime is 3984751. The next prime is 3984769. The reversal of 3984756 is 6574893.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984751) 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, 8511 + ... + 8966.

It is an arithmetic number, because the mean of its divisors is an integer number (407820).

Almost surely, 2^3984756 is an apocalyptic number.

It is an amenable number.

3984756 is an abundant number, since it is smaller than the sum of its proper divisors (5802924).

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

3984756 is a wasteful number, since it uses less digits than its factorization.

3984756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17503 (or 17501 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 3984756 is about 1996.1853621345. The cubic root of 3984756 is about 158.5381956398.

It can be divided in two parts, 39847 and 56, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 3984756 in words is "three million, nine hundred eighty-four thousand, seven hundred fifty-six".