3556996 has 27 divisors (see below), whose sum is σ = 6669733. Its totient is φ = 1659680.

The previous prime is 3556991. The next prime is 3556999. The reversal of 3556996 is 6996553.

It is a happy number.

The square root of 3556996 is 1886.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 171396 + 3385600 = 414^2 + 1840^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3556991) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 86736 + ... + 86776.

Almost surely, 2^3556996 is an apocalyptic number.

3556996 is the 1886-th square number.

It is an amenable number.

3556996 is a deficient number, since it is larger than the sum of its proper divisors (3112737).

3556996 is a wasteful number, since it uses less digits than its factorization.

3556996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 66 counting only the distinct ones).

The product of its digits is 218700, while the sum is 43.

The cubic root of 3556996 is about 152.6491741069.

The spelling of 3556996 in words is "three million, five hundred fifty-six thousand, nine hundred ninety-six".