943412209 has 2 divisors, whose sum is σ = 943412210. Its totient is φ = 943412208.

The previous prime is 943412201. The next prime is 943412219. The reversal of 943412209 is 902214349.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 940771584 + 2640625 = 30672^2 + 1625^2 .

It is an emirp because it is prime and its reverse (902214349) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 943412209 - 2³ = 943412201 is a prime.

It is not a weakly prime, because it can be changed into another prime (943412201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471706104 + 471706105.

It is an arithmetic number, because the mean of its divisors is an integer number (471706105).

Almost surely, 2^943412209 is an apocalyptic number.

It is an amenable number.

943412209 is a deficient number, since it is larger than the sum of its proper divisors (1).

943412209 is an equidigital number, since it uses as much as digits as its factorization.

943412209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 943412209 is about 30715.0160182280. The cubic root of 943412209 is about 980.7699796992.

The spelling of 943412209 in words is "nine hundred forty-three million, four hundred twelve thousand, two hundred nine".