9947968 has 28 divisors (see below), whose sum is σ = 20278852. Its totient is φ = 4838400.

The previous prime is 9947947. The next prime is 9947969. The reversal of 9947968 is 8697499.

It can be written as a sum of positive squares in 2 ways, for example, as 4528384 + 5419584 = 2128^2 + 2328^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9947969) 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, 268 + ... + 4468.

Almost surely, 2^9947968 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 9947968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10139426).

9947968 is an abundant number, since it is smaller than the sum of its proper divisors (10330884).

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

9947968 is a wasteful number, since it uses less digits than its factorization.

9947968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250 (or 4240 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 9947968 is about 3154.0399490178. The cubic root of 9947968 is about 215.0691538858.

The spelling of 9947968 in words is "nine million, nine hundred forty-seven thousand, nine hundred sixty-eight".