8993013121 has 8 divisors (see below), whose sum is σ = 9083355840. Its totient is φ = 8902728912.

The previous prime is 8993013097. The next prime is 8993013137. The reversal of 8993013121 is 1213103998.

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 8993013121 - 2²³ = 8984624513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8993013181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336186 + ... + 361948.

It is an arithmetic number, because the mean of its divisors is an integer number (1135419480).

Almost surely, 2^8993013121 is an apocalyptic number.

It is an amenable number.

8993013121 is a deficient number, since it is larger than the sum of its proper divisors (90342719).

8993013121 is a wasteful number, since it uses less digits than its factorization.

8993013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29255.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 8993013121 is about 94831.4985698317. The cubic root of 8993013121 is about 2079.5454135544.

The spelling of 8993013121 in words is "eight billion, nine hundred ninety-three million, thirteen thousand, one hundred twenty-one".