9013209 has 4 divisors (see below), whose sum is σ = 12017616. Its totient is φ = 6008804.

The previous prime is 9013129. The next prime is 9013223. The reversal of 9013209 is 9023109.

It is a happy number.

9013209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9013209 - 2⁹ = 9012697 is a prime.

9013209 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9013289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502199 + ... + 1502204.

It is an arithmetic number, because the mean of its divisors is an integer number (3004404).

Almost surely, 2^9013209 is an apocalyptic number.

It is an amenable number.

9013209 is a deficient number, since it is larger than the sum of its proper divisors (3004407).

9013209 is a wasteful number, since it uses less digits than its factorization.

9013209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004406.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 9013209 is about 3002.2006928252. The cubic root of 9013209 is about 208.1100948844.

The spelling of 9013209 in words is "nine million, thirteen thousand, two hundred nine".