9983409 has 4 divisors (see below), whose sum is σ = 13311216. Its totient is φ = 6655604.

The previous prime is 9983401. The next prime is 9983423. The reversal of 9983409 is 9043899.

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 9983409 - 2³ = 9983401 is a prime.

It is a super-2 number, since 2×9983409² = 199336910522562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9983401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663899 + ... + 1663904.

It is an arithmetic number, because the mean of its divisors is an integer number (3327804).

Almost surely, 2^9983409 is an apocalyptic number.

It is an amenable number.

9983409 is a deficient number, since it is larger than the sum of its proper divisors (3327807).

9983409 is a wasteful number, since it uses less digits than its factorization.

9983409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327806.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 9983409 is about 3159.6533037661. The cubic root of 9983409 is about 215.3242556301.

The spelling of 9983409 in words is "nine million, nine hundred eighty-three thousand, four hundred nine".