3216449 has 2 divisors, whose sum is σ = 3216450. Its totient is φ = 3216448.

The previous prime is 3216431. The next prime is 3216457. The reversal of 3216449 is 9446123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3214849 + 1600 = 1793^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 3216449 - 2¹² = 3212353 is a prime.

It is not a weakly prime, because it can be changed into another prime (3216049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608224 + 1608225.

It is an arithmetic number, because the mean of its divisors is an integer number (1608225).

Almost surely, 2^3216449 is an apocalyptic number.

It is an amenable number.

3216449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216449 is an equidigital number, since it uses as much as digits as its factorization.

3216449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 3216449 is about 1793.4461240863. The cubic root of 3216449 is about 147.6133228525.

The spelling of 3216449 in words is "three million, two hundred sixteen thousand, four hundred forty-nine".