3554221 has 8 divisors (see below), whose sum is σ = 3916224. Its totient is φ = 3198720.

The previous prime is 3554203. The next prime is 3554227. The reversal of 3554221 is 1224553.

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 3554221 - 2¹¹ = 3552173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3554192 and 3554201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3554227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436 + ... + 2701.

It is an arithmetic number, because the mean of its divisors is an integer number (489528).

Almost surely, 2^3554221 is an apocalyptic number.

It is an amenable number.

3554221 is a deficient number, since it is larger than the sum of its proper divisors (362003).

3554221 is a wasteful number, since it uses less digits than its factorization.

3554221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251.

The product of its digits is 1200, while the sum is 22.

The square root of 3554221 is about 1885.2641724703. The cubic root of 3554221 is about 152.6094672247.

Adding to 3554221 its reverse (1224553), we get a palindrome (4778774).

The spelling of 3554221 in words is "three million, five hundred fifty-four thousand, two hundred twenty-one".