9994009 has 4 divisors (see below), whose sum is σ = 10338660. Its totient is φ = 9649360.

The previous prime is 9994003. The next prime is 9994021. The reversal of 9994009 is 9004999.

9994009 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.

It can be written as a sum of positive squares in 2 ways, for example, as 8179600 + 1814409 = 2860^2 + 1347^2 .

It is a cyclic number.

It is not a de Polignac number, because 9994009 - 2³ = 9994001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9994001) 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, 172282 + ... + 172339.

It is an arithmetic number, because the mean of its divisors is an integer number (2584665).

Almost surely, 2^9994009 is an apocalyptic number.

It is an amenable number.

9994009 is a deficient number, since it is larger than the sum of its proper divisors (344651).

9994009 is a wasteful number, since it uses less digits than its factorization.

9994009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344650.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 9994009 is about 3161.3302579769. The cubic root of 9994009 is about 215.4004363477.

It can be divided in two parts, 9 and 994009, that multiplied together give a square (8946081 = 2991²).

The spelling of 9994009 in words is "nine million, nine hundred ninety-four thousand, nine".