3494221 has 2 divisors, whose sum is σ = 3494222. Its totient is φ = 3494220.

The previous prime is 3494209. The next prime is 3494269. The reversal of 3494221 is 1224943.

3494221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3258025 + 236196 = 1805^2 + 486^2 .

It is an emirp because it is prime and its reverse (1224943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3494221 - 2⁷ = 3494093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3494521) 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 as a sum of consecutive naturals, namely, 1747110 + 1747111.

It is an arithmetic number, because the mean of its divisors is an integer number (1747111).

Almost surely, 2^3494221 is an apocalyptic number.

It is an amenable number.

3494221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3494221 is an equidigital number, since it uses as much as digits as its factorization.

3494221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 3494221 is about 1869.2835525944. The cubic root of 3494221 is about 151.7458385230.

The spelling of 3494221 in words is "three million, four hundred ninety-four thousand, two hundred twenty-one".