9897648893 has 8 divisors (see below), whose sum is σ = 10800258240. Its totient is φ = 8995510080.

The previous prime is 9897648881. The next prime is 9897648941. The reversal of 9897648893 is 3988467989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9897648893 - 2⁴ = 9897648877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9897648833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72905 + ... + 158462.

It is an arithmetic number, because the mean of its divisors is an integer number (1350032280).

Almost surely, 2^9897648893 is an apocalyptic number.

It is an amenable number.

9897648893 is a deficient number, since it is larger than the sum of its proper divisors (902609347).

9897648893 is a wasteful number, since it uses less digits than its factorization.

9897648893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235267.

The product of its digits is 188116992, while the sum is 71.

The square root of 9897648893 is about 99486.9282519065. The cubic root of 9897648893 is about 2147.0591769240.

The spelling of 9897648893 in words is "nine billion, eight hundred ninety-seven million, six hundred forty-eight thousand, eight hundred ninety-three".