3556445 has 8 divisors (see below), whose sum is σ = 4278744. Its totient is φ = 2837824.

The previous prime is 3556393. The next prime is 3556447. The reversal of 3556445 is 5446553.

3556445 = 1333² + 1334².

3556445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 89401 + 3467044 = 299^2 + 1862^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3556445 - 2¹⁸ = 3294301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3556447) 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 7 ways as a sum of consecutive naturals, for example, 2147 + ... + 3423.

It is an arithmetic number, because the mean of its divisors is an integer number (534843).

Almost surely, 2^3556445 is an apocalyptic number.

3556445 is the 1334-th centered square number.

It is an amenable number.

3556445 is a deficient number, since it is larger than the sum of its proper divisors (722299).

3556445 is a wasteful number, since it uses less digits than its factorization.

3556445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839.

The product of its digits is 36000, while the sum is 32.

The square root of 3556445 is about 1885.8539179905. The cubic root of 3556445 is about 152.6412916092.

The spelling of 3556445 in words is "three million, five hundred fifty-six thousand, four hundred forty-five".