9213909 has 8 divisors (see below), whose sum is σ = 12708960. Its totient is φ = 5930736.

The previous prime is 9213871. The next prime is 9213923. The reversal of 9213909 is 9093129.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9213909 - 2¹¹ = 9211861 is a prime.

It is a super-2 number, since 2×9213909² = 169792238120562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9213909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9213979) 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 7 ways as a sum of consecutive naturals, for example, 52867 + ... + 53040.

It is an arithmetic number, because the mean of its divisors is an integer number (1588620).

Almost surely, 2^9213909 is an apocalyptic number.

It is an amenable number.

9213909 is a deficient number, since it is larger than the sum of its proper divisors (3495051).

9213909 is a wasteful number, since it uses less digits than its factorization.

9213909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105939.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 9213909 is about 3035.4421424234. The cubic root of 9213909 is about 209.6434539419.

The spelling of 9213909 in words is "nine million, two hundred thirteen thousand, nine hundred nine".