9899706 has 24 divisors (see below), whose sum is σ = 20704320. Its totient is φ = 3155416.

The previous prime is 9899693. The next prime is 9899731. The reversal of 9899706 is 6079989.

It is a happy number.

It is a Curzon 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, 1615 + ... + 4733.

It is an arithmetic number, because the mean of its divisors is an integer number (862680).

Almost surely, 2^9899706 is an apocalyptic number.

9899706 is an abundant number, since it is smaller than the sum of its proper divisors (10804614).

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

9899706 is a wasteful number, since it uses less digits than its factorization.

9899706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 9899706 is about 3146.3798244967. The cubic root of 9899706 is about 214.7207913409.

The spelling of 9899706 in words is "nine million, eight hundred ninety-nine thousand, seven hundred six".