9994909 has 4 divisors (see below), whose sum is σ = 10002240. Its totient is φ = 9987580.

The previous prime is 9994871. The next prime is 9994913. The reversal of 9994909 is 9094999.

9994909 is digitally balanced in base 3, 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9094999 = 89 ⋅102191.

It is a cyclic number.

It is not a de Polignac number, because 9994909 - 2¹¹ = 9992861 is a prime.

It is a Duffinian number.

9994909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9994109) 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, 949 + ... + 4570.

It is an arithmetic number, because the mean of its divisors is an integer number (2500560).

Almost surely, 2^9994909 is an apocalyptic number.

It is an amenable number.

9994909 is a deficient number, since it is larger than the sum of its proper divisors (7331).

9994909 is a wasteful number, since it uses less digits than its factorization.

9994909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7330.

The product of its (nonzero) digits is 236196, while the sum is 49.

The square root of 9994909 is about 3161.4725999129. The cubic root of 9994909 is about 215.4069020404.

The spelling of 9994909 in words is "nine million, nine hundred ninety-four thousand, nine hundred nine".