9906944 has 18 divisors (see below), whose sum is σ = 19775700. Its totient is φ = 4953344.

The previous prime is 9906943. The next prime is 9906973. The reversal of 9906944 is 4496099.

It is not an unprimeable number, because it can be changed into a prime (9906943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19094 + ... + 19605.

It is an arithmetic number, because the mean of its divisors is an integer number (1098650).

Almost surely, 2^9906944 is an apocalyptic number.

It is an amenable number.

9906944 is a deficient number, since it is larger than the sum of its proper divisors (9868756).

9906944 is an equidigital number, since it uses as much as digits as its factorization.

9906944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38715 (or 38701 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 9906944 is about 3147.5298251168. The cubic root of 9906944 is about 214.7731083988.

The spelling of 9906944 in words is "nine million, nine hundred six thousand, nine hundred forty-four".