9968540 has 48 divisors (see below), whose sum is σ = 22663200. Its totient is φ = 3670272.

The previous prime is 9968537. The next prime is 9968551. The reversal of 9968540 is 458699.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13706 + ... + 14414.

It is an arithmetic number, because the mean of its divisors is an integer number (472150).

Almost surely, 2^9968540 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 9968540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11331600).

9968540 is an abundant number, since it is smaller than the sum of its proper divisors (12694660).

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

9968540 is a wasteful number, since it uses less digits than its factorization.

9968540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 9968540 is about 3157.2994789852. The cubic root of 9968540 is about 215.2173032802.

The spelling of 9968540 in words is "nine million, nine hundred sixty-eight thousand, five hundred forty".