12802209 has 16 divisors (see below), whose sum is σ = 19985280. Its totient is φ = 7136640.

The previous prime is 12802201. The next prime is 12802213. The reversal of 12802209 is 90220821.

It is not a de Polignac number, because 12802209 - 2³ = 12802201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12802201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6574 + ... + 8295.

It is an arithmetic number, because the mean of its divisors is an integer number (1249080).

Almost surely, 2^12802209 is an apocalyptic number.

It is an amenable number.

12802209 is a deficient number, since it is larger than the sum of its proper divisors (7183071).

12802209 is a wasteful number, since it uses less digits than its factorization.

12802209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14920.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 12802209 is about 3578.0174678165. The cubic root of 12802209 is about 233.9348748563.

The spelling of 12802209 in words is "twelve million, eight hundred two thousand, two hundred nine".