5009209 has 4 divisors (see below), whose sum is σ = 5031504. Its totient is φ = 4986916.

The previous prime is 5009167. The next prime is 5009233. The reversal of 5009209 is 9029005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5009209 - 2⁹ = 5008697 is a prime.

It is a Duffinian number.

5009209 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5009269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10807 + ... + 11260.

It is an arithmetic number, because the mean of its divisors is an integer number (1257876).

Almost surely, 2^5009209 is an apocalyptic number.

It is an amenable number.

5009209 is a deficient number, since it is larger than the sum of its proper divisors (22295).

5009209 is a wasteful number, since it uses less digits than its factorization.

5009209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22294.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 5009209 is about 2238.1262252161. The cubic root of 5009209 is about 171.1025114054.

The spelling of 5009209 in words is "five million, nine thousand, two hundred nine".