3921536 has 16 divisors (see below), whose sum is σ = 7812690. Its totient is φ = 1960704.

The previous prime is 3921529. The next prime is 3921551. The reversal of 3921536 is 6351293.

3921536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2383936 + 1537600 = 1544^2 + 1240^2 .

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 = 3921499 and 3921508.

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 as a sum of consecutive naturals, namely, 15191 + ... + 15446.

Almost surely, 2^3921536 is an apocalyptic number.

It is an amenable number.

3921536 is a deficient number, since it is larger than the sum of its proper divisors (3891154).

3921536 is an equidigital number, since it uses as much as digits as its factorization.

3921536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30651 (or 30639 counting only the distinct ones).

The product of its digits is 4860, while the sum is 29.

The square root of 3921536 is about 1980.2868479087. The cubic root of 3921536 is about 157.6952948198.

The spelling of 3921536 in words is "three million, nine hundred twenty-one thousand, five hundred thirty-six".