9709944 has 48 divisors (see below), whose sum is σ = 25142760. Its totient is φ = 3124800.

The previous prime is 9709939. The next prime is 9709951. The reversal of 9709944 is 4499079.

It is a junction number, because it is equal to n+sod(n) for n = 9709896 and 9709905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22854 + ... + 23274.

Almost surely, 2^9709944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9709944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12571380).

9709944 is an abundant number, since it is smaller than the sum of its proper divisors (15432816).

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

9709944 is a wasteful number, since it uses less digits than its factorization.

9709944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 9709944 is about 3116.0783045360. The cubic root of 9709944 is about 213.3399759216.

The spelling of 9709944 in words is "nine million, seven hundred nine thousand, nine hundred forty-four".