9889664201 has 8 divisors (see below), whose sum is σ = 10491517224. Its totient is φ = 9290045440.

The previous prime is 9889664159. The next prime is 9889664207. The reversal of 9889664201 is 1024669889.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 838044601 + 9051619600 = 28949^2 + 95140^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9889664201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9889664207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549440 + ... + 567153.

It is an arithmetic number, because the mean of its divisors is an integer number (1311439653).

Almost surely, 2^9889664201 is an apocalyptic number.

It is an amenable number.

9889664201 is a deficient number, since it is larger than the sum of its proper divisors (601853023).

9889664201 is a wasteful number, since it uses less digits than its factorization.

9889664201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117131.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 9889664201 is about 99446.7908029213. The cubic root of 9889664201 is about 2146.4816586820.

The spelling of 9889664201 in words is "nine billion, eight hundred eighty-nine million, six hundred sixty-four thousand, two hundred one".