3968556 has 24 divisors (see below), whose sum is σ = 9476544. Its totient is φ = 1291920.

The previous prime is 3968551. The next prime is 3968567. The reversal of 3968556 is 6558693.

3968556 = T₁₂₃ + T₁₂₄ + ... + T₂₉₄.

3968556 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3968551) 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 in 7 ways as a sum of consecutive naturals, for example, 3330 + ... + 4361.

It is an arithmetic number, because the mean of its divisors is an integer number (394856).

Almost surely, 2^3968556 is an apocalyptic number.

It is an amenable number.

3968556 is an abundant number, since it is smaller than the sum of its proper divisors (5507988).

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

3968556 is a wasteful number, since it uses less digits than its factorization.

3968556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7741 (or 7739 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 3968556 is about 1992.1234901481. The cubic root of 3968556 is about 158.3230584899.

The spelling of 3968556 in words is "three million, nine hundred sixty-eight thousand, five hundred fifty-six".