5780209 has 2 divisors, whose sum is σ = 5780210. Its totient is φ = 5780208.

The previous prime is 5780207. The next prime is 5780219. The reversal of 5780209 is 9020875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3686400 + 2093809 = 1920^2 + 1447^2 .

It is a cyclic number.

It is not a de Polignac number, because 5780209 - 2¹ = 5780207 is a prime.

Together with 5780207, it forms a pair of twin primes.

5780209 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5780207) 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, 2890104 + 2890105.

It is an arithmetic number, because the mean of its divisors is an integer number (2890105).

Almost surely, 2^5780209 is an apocalyptic number.

It is an amenable number.

5780209 is a deficient number, since it is larger than the sum of its proper divisors (1).

5780209 is an equidigital number, since it uses as much as digits as its factorization.

5780209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 5780209 is about 2404.2065219111. The cubic root of 5780209 is about 179.4655856930.

The spelling of 5780209 in words is "five million, seven hundred eighty thousand, two hundred nine".