3996544 has 16 divisors (see below), whose sum is σ = 7962120. Its totient is φ = 1998208.

The previous prime is 3996541. The next prime is 3996569. The reversal of 3996544 is 4456993.

3996544 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 3996497 and 3996506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3996541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15484 + ... + 15739.

Almost surely, 2^3996544 is an apocalyptic number.

It is an amenable number.

3996544 is a deficient number, since it is larger than the sum of its proper divisors (3965576).

3996544 is an equidigital number, since it uses as much as digits as its factorization.

3996544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31237 (or 31225 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 3996544 is about 1999.1358132953. The cubic root of 3996544 is about 158.6943748737.

The spelling of 3996544 in words is "three million, nine hundred ninety-six thousand, five hundred forty-four".