8666121 has 8 divisors (see below), whose sum is σ = 11578144. Its totient is φ = 5765760.

The previous prime is 8666093. The next prime is 8666137. The reversal of 8666121 is 1216668.

8666121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8666121 - 2⁶ = 8666057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8667121) 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, 1000 + ... + 4281.

It is an arithmetic number, because the mean of its divisors is an integer number (1447268).

Almost surely, 2^8666121 is an apocalyptic number.

It is an amenable number.

8666121 is a deficient number, since it is larger than the sum of its proper divisors (2912023).

8666121 is a wasteful number, since it uses less digits than its factorization.

8666121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831.

The product of its digits is 3456, while the sum is 30.

The square root of 8666121 is about 2943.8276104419. The cubic root of 8666121 is about 205.4036938998.

The spelling of 8666121 in words is "eight million, six hundred sixty-six thousand, one hundred twenty-one".