3281449 has 2 divisors, whose sum is σ = 3281450. Its totient is φ = 3281448.

The previous prime is 3281441. The next prime is 3281461. The reversal of 3281449 is 9441823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1841449 + 1440000 = 1357^2 + 1200^2 .

It is a cyclic number.

It is not a de Polignac number, because 3281449 - 2³ = 3281441 is a prime.

3281449 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3281449.

It is not a weakly prime, because it can be changed into another prime (3281441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640724 + 1640725.

It is an arithmetic number, because the mean of its divisors is an integer number (1640725).

Almost surely, 2^3281449 is an apocalyptic number.

It is an amenable number.

3281449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3281449 is an equidigital number, since it uses as much as digits as its factorization.

3281449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 3281449 is about 1811.4770216594. The cubic root of 3281449 is about 148.6010527976.

The spelling of 3281449 in words is "three million, two hundred eighty-one thousand, four hundred forty-nine".