3556081 has 4 divisors (see below), whose sum is σ = 3571200. Its totient is φ = 3540964.

The previous prime is 3556073. The next prime is 3556087. The reversal of 3556081 is 1806553.

3556081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3556081 - 2³ = 3556073 is a prime.

It is a super-2 number, since 2×3556081² = 25291424157122, which contains 22 as substring.

It is a Duffinian number.

3556081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3556087) 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 3 ways as a sum of consecutive naturals, for example, 7201 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (892800).

Almost surely, 2^3556081 is an apocalyptic number.

It is an amenable number.

3556081 is a deficient number, since it is larger than the sum of its proper divisors (15119).

3556081 is a wasteful number, since it uses less digits than its factorization.

3556081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15118.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 3556081 is about 1885.7574075156. The cubic root of 3556081 is about 152.6360838502.

The spelling of 3556081 in words is "three million, five hundred fifty-six thousand, eighty-one".