9906550 has 24 divisors (see below), whose sum is σ = 18525600. Its totient is φ = 3941280.

The previous prime is 9906527. The next prime is 9906569. The reversal of 9906550 is 556099.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11536 + ... + 12364.

It is an arithmetic number, because the mean of its divisors is an integer number (771900).

Almost surely, 2^9906550 is an apocalyptic number.

9906550 is a deficient number, since it is larger than the sum of its proper divisors (8619050).

9906550 is a wasteful number, since it uses less digits than its factorization.

9906550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 9906550 is about 3147.4672357310. The cubic root of 9906550 is about 214.7702611795.

The spelling of 9906550 in words is "nine million, nine hundred six thousand, five hundred fifty".