9896544 has 72 divisors (see below), whose sum is σ = 32170320. Its totient is φ = 2827008.

The previous prime is 9896543. The next prime is 9896563. The reversal of 9896544 is 4456989.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 9896544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9896543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439 + ... + 4470.

It is an arithmetic number, because the mean of its divisors is an integer number (446810).

Almost surely, 2^9896544 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 9896544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16085160).

9896544 is an abundant number, since it is smaller than the sum of its proper divisors (22273776).

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

9896544 is a wasteful number, since it uses less digits than its factorization.

9896544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932 (or 4921 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 9896544 is about 3145.8773021210. The cubic root of 9896544 is about 214.6979280545.

It can be divided in two parts, 9896 and 544, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 9896544 in words is "nine million, eight hundred ninety-six thousand, five hundred forty-four".