3555968 has 32 divisors (see below), whose sum is σ = 7632660. Its totient is φ = 1640448.

The previous prime is 3555967. The next prime is 3555977. The reversal of 3555968 is 8695553.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 760384 = 1672^2 + 872^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (3555967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596 + ... + 2732.

Almost surely, 2^3555968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3555968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3816330).

3555968 is an abundant number, since it is smaller than the sum of its proper divisors (4076692).

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

3555968 is a wasteful number, since it uses less digits than its factorization.

3555968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164 (or 2152 counting only the distinct ones).

The product of its digits is 162000, while the sum is 41.

The square root of 3555968 is about 1885.7274458415. The cubic root of 3555968 is about 152.6344670835.

The spelling of 3555968 in words is "three million, five hundred fifty-five thousand, nine hundred sixty-eight".