9887333121 has 20 divisors (see below), whose sum is σ = 14791425264. Its totient is φ = 6581979000.

The previous prime is 9887333117. The next prime is 9887333129. The reversal of 9887333121 is 1213337889.

It is a happy number.

It is not a de Polignac number, because 9887333121 - 2² = 9887333117 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9887333129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32355 + ... + 144296.

Almost surely, 2^9887333121 is an apocalyptic number.

It is an amenable number.

9887333121 is a deficient number, since it is larger than the sum of its proper divisors (4904092143).

9887333121 is a wasteful number, since it uses less digits than its factorization.

9887333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177354 (or 177345 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 9887333121 is about 99435.0698747680. The cubic root of 9887333121 is about 2146.3129972881.

The spelling of 9887333121 in words is "nine billion, eight hundred eighty-seven million, three hundred thirty-three thousand, one hundred twenty-one".