9931704120 has 144 divisors (see below), whose sum is σ = 34952172840. Its totient is φ = 2444712192.

The previous prime is 9931704049. The next prime is 9931704121. The reversal of 9931704120 is 214071399.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9931704121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20782 + ... + 142461.

Almost surely, 2^9931704120 is an apocalyptic number.

9931704120 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 9931704120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17476086420).

9931704120 is an abundant number, since it is smaller than the sum of its proper divisors (25020468720).

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

9931704120 is a wasteful number, since it uses less digits than its factorization.

9931704120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163286 (or 163266 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 9931704120 is about 99657.9355595930. The cubic root of 9931704120 is about 2149.5188481623.

The spelling of 9931704120 in words is "nine billion, nine hundred thirty-one million, seven hundred four thousand, one hundred twenty".