9730857920 has 224 divisors, whose sum is σ = 27428049792. Its totient is φ = 3218669568.

The previous prime is 9730857911. The next prime is 9730857937. The reversal of 9730857920 is 297580379.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11354132 + ... + 11354988.

Almost surely, 2^9730857920 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 9730857920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13714024896).

9730857920 is an abundant number, since it is smaller than the sum of its proper divisors (17697191872).

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

9730857920 is a wasteful number, since it uses less digits than its factorization.

9730857920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 9730857920 is about 98645.1109786998. The cubic root of 9730857920 is about 2134.9303467121.

The spelling of 9730857920 in words is "nine billion, seven hundred thirty million, eight hundred fifty-seven thousand, nine hundred twenty".