3556812 has 72 divisors (see below), whose sum is σ = 10112256. Its totient is φ = 968352.

The previous prime is 3556811. The next prime is 3556843. The reversal of 3556812 is 2186553.

3556812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3556812.

It is not an unprimeable number, because it can be changed into a prime (3556811) 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 23 ways as a sum of consecutive naturals, for example, 13393 + ... + 13655.

It is an arithmetic number, because the mean of its divisors is an integer number (140448).

Almost surely, 2^3556812 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 3556812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5056128).

3556812 is an abundant number, since it is smaller than the sum of its proper divisors (6555444).

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

3556812 is a wasteful number, since it uses less digits than its factorization.

3556812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 298 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 3556812 is about 1885.9512188813. The cubic root of 3556812 is about 152.6465419296.

The spelling of 3556812 in words is "three million, five hundred fifty-six thousand, eight hundred twelve".