9697705056 has 144 divisors (see below), whose sum is σ = 29747390400. Its totient is φ = 2979072000.

The previous prime is 9697705033. The next prime is 9697705057. The reversal of 9697705056 is 6505077969.

9697705056 is a `hidden beast` number, since 9 + 69 + 7 + 70 + 505 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 9697704993 and 9697705011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9697705057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2810020 + ... + 2813468.

It is an arithmetic number, because the mean of its divisors is an integer number (206579100).

Almost surely, 2^9697705056 is an apocalyptic number.

9697705056 is a gapful number since it is divisible by the number (96) 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 9697705056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14873695200).

9697705056 is an abundant number, since it is smaller than the sum of its proper divisors (20049685344).

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

9697705056 is a wasteful number, since it uses less digits than its factorization.

9697705056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229 (or 4218 counting only the distinct ones).

The product of its (nonzero) digits is 3572100, while the sum is 54.

The square root of 9697705056 is about 98476.9265158088. The cubic root of 9697705056 is about 2132.5030311383.

The spelling of 9697705056 in words is "nine billion, six hundred ninety-seven million, seven hundred five thousand, fifty-six".