9909456 has 20 divisors (see below), whose sum is σ = 25599552. Its totient is φ = 3303136.

The previous prime is 9909443. The next prime is 9909457. The reversal of 9909456 is 6549099.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909457) 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, 103176 + ... + 103271.

Almost surely, 2^9909456 is an apocalyptic number.

It is an amenable number.

9909456 is an abundant number, since it is smaller than the sum of its proper divisors (15690096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9909456 is a wasteful number, since it uses less digits than its factorization.

9909456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206458 (or 206452 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 9909456 is about 3147.9288429061. The cubic root of 9909456 is about 214.7912594538.

The spelling of 9909456 in words is "nine million, nine hundred nine thousand, four hundred fifty-six".