3926656 has 16 divisors (see below), whose sum is σ = 7822890. Its totient is φ = 1963264.

The previous prime is 3926651. The next prime is 3926707. The reversal of 3926656 is 6566293.

3926656 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., 2958400 + 968256 = 1720^2 + 984^2 .

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

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3926651) by changing a digit.

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, 15211 + ... + 15466.

Almost surely, 2^3926656 is an apocalyptic number.

It is an amenable number.

3926656 is a deficient number, since it is larger than the sum of its proper divisors (3896234).

3926656 is an equidigital number, since it uses as much as digits as its factorization.

3926656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30691 (or 30679 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The square root of 3926656 is about 1981.5791682393. The cubic root of 3926656 is about 157.7638945369.

The spelling of 3926656 in words is "three million, nine hundred twenty-six thousand, six hundred fifty-six".