9884601720 has 640 divisors, whose sum is σ = 41549967360. Its totient is φ = 2055352320.

The previous prime is 9884601691. The next prime is 9884601799. The reversal of 9884601720 is 271064889.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11951947 + ... + 11952773.

It is an arithmetic number, because the mean of its divisors is an integer number (64921824).

Almost surely, 2^9884601720 is an apocalyptic number.

9884601720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9884601720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20774983680).

9884601720 is an abundant number, since it is smaller than the sum of its proper divisors (31665365640).

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

9884601720 is a wasteful number, since it uses less digits than its factorization.

9884601720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 9884601720 is about 99421.3343302131. The cubic root of 9884601720 is about 2146.1153376052.

The spelling of 9884601720 in words is "nine billion, eight hundred eighty-four million, six hundred one thousand, seven hundred twenty".