3481221 has 4 divisors (see below), whose sum is σ = 4641632. Its totient is φ = 2320812.

The previous prime is 3481217. The next prime is 3481229. The reversal of 3481221 is 1221843.

3481221 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 not a de Polignac number, because 3481221 - 2² = 3481217 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3481229) 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, 580201 + ... + 580206.

It is an arithmetic number, because the mean of its divisors is an integer number (1160408).

Almost surely, 2^3481221 is an apocalyptic number.

It is an amenable number.

3481221 is a deficient number, since it is larger than the sum of its proper divisors (1160411).

3481221 is a wasteful number, since it uses less digits than its factorization.

3481221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160410.

The product of its digits is 384, while the sum is 21.

The square root of 3481221 is about 1865.8030442681. The cubic root of 3481221 is about 151.5574181383.

The spelling of 3481221 in words is "three million, four hundred eighty-one thousand, two hundred twenty-one".