9673521984 has 448 divisors, whose sum is σ = 34950400000. Its totient is φ = 2615348736.

The previous prime is 9673521983. The next prime is 9673522009. The reversal of 9673521984 is 4891253769.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 9673521984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9673521983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11260947 + ... + 11261805.

Almost surely, 2^9673521984 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 9673521984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17475200000).

9673521984 is an abundant number, since it is smaller than the sum of its proper divisors (25276878016).

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

9673521984 is a wasteful number, since it uses less digits than its factorization.

9673521984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 890 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 9673521984 is about 98354.0644000033. The cubic root of 9673521984 is about 2130.7289550224.

The spelling of 9673521984 in words is "nine billion, six hundred seventy-three million, five hundred twenty-one thousand, nine hundred eighty-four".