8646121 has 16 divisors (see below), whose sum is σ = 10180800. Its totient is φ = 7257600.

The previous prime is 8646119. The next prime is 8646163. The reversal of 8646121 is 1216468.

8646121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a 3-Lehmer number, since φ(8646121) divides (8646121-1)³.

It is a cyclic number.

It is not a de Polignac number, because 8646121 - 2¹ = 8646119 is a prime.

It is a deceptive number, since it divides R_8646120.

It is a Duffinian number.

8646121 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8646121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8646181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8065 + ... + 9073.

It is an arithmetic number, because the mean of its divisors is an integer number (636300).

It is a Poulet number, since it divides 2^8646120-1.

Almost surely, 2^8646121 is an apocalyptic number.

It is an amenable number.

8646121 is a deficient number, since it is larger than the sum of its proper divisors (1534679).

8646121 is a wasteful number, since it uses less digits than its factorization.

8646121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

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

The square root of 8646121 is about 2940.4287102394. The cubic root of 8646121 is about 205.2455593976.

The spelling of 8646121 in words is "eight million, six hundred forty-six thousand, one hundred twenty-one".