8664121 has 8 divisors (see below), whose sum is σ = 8959104. Its totient is φ = 8373840.

The previous prime is 8664109. The next prime is 8664157. The reversal of 8664121 is 1214668.

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 8664121 - 2⁹ = 8663609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8664121.

It is not an unprimeable number, because it can be changed into a prime (8664181) 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, 2791 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (1119888).

Almost surely, 2^8664121 is an apocalyptic number.

It is an amenable number.

8664121 is a deficient number, since it is larger than the sum of its proper divisors (294983).

8664121 is a wasteful number, since it uses less digits than its factorization.

8664121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351.

The product of its digits is 2304, while the sum is 28.

The square root of 8664121 is about 2943.4878970364. The cubic root of 8664121 is about 205.3878914051.

Adding to 8664121 its reverse (1214668), we get a palindrome (9878789).

The spelling of 8664121 in words is "eight million, six hundred sixty-four thousand, one hundred twenty-one".