3556556 has 6 divisors (see below), whose sum is σ = 6223980. Its totient is φ = 1778276.

The previous prime is 3556547. The next prime is 3556571. The reversal of 3556556 is 6556553.

It is a super-2 number, since 2×3556556² = 25298181162272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444566 + ... + 444573.

It is an arithmetic number, because the mean of its divisors is an integer number (1037330).

Almost surely, 2^3556556 is an apocalyptic number.

It is an amenable number.

3556556 is a deficient number, since it is larger than the sum of its proper divisors (2667424).

3556556 is a wasteful number, since it uses less digits than its factorization.

3556556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889143 (or 889141 counting only the distinct ones).

The product of its digits is 67500, while the sum is 35.

The square root of 3556556 is about 1885.8833473998. The cubic root of 3556556 is about 152.6428796189.

The spelling of 3556556 in words is "three million, five hundred fifty-six thousand, five hundred fifty-six".