2066447 has 2 divisors, whose sum is σ = 2066448. Its totient is φ = 2066446.

The previous prime is 2066443. The next prime is 2066461. The reversal of 2066447 is 7446602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2066447 - 2² = 2066443 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 0 + 6³ + 6⁶ + 4⁷ + 4¹⁰ + 7⁷ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2066443) 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, 1033223 + 1033224.

It is an arithmetic number, because the mean of its divisors is an integer number (1033224).

2^2066447 is an apocalyptic number.

2066447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066447 is an equidigital number, since it uses as much as digits as its factorization.

2066447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 2066447 is about 1437.5141738432. The cubic root of 2066447 is about 127.3722313539.

The spelling of 2066447 in words is "two million, sixty-six thousand, four hundred forty-seven".