8818121 has 8 divisors (see below), whose sum is σ = 10055304. Its totient is φ = 7660800.

The previous prime is 8818097. The next prime is 8818133. The reversal of 8818121 is 1218188.

It can be written as a sum of positive squares in 4 ways, for example, as 26896 + 8791225 = 164^2 + 2965^2 .

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 8818121 - 2⁶ = 8818057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8818141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19730 + ... + 20171.

It is an arithmetic number, because the mean of its divisors is an integer number (1256913).

Almost surely, 2^8818121 is an apocalyptic number.

It is an amenable number.

8818121 is a deficient number, since it is larger than the sum of its proper divisors (1237183).

8818121 is a wasteful number, since it uses less digits than its factorization.

8818121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39931.

The product of its digits is 1024, while the sum is 29.

The square root of 8818121 is about 2969.5321180280. The cubic root of 8818121 is about 206.5976376583.

The spelling of 8818121 in words is "eight million, eight hundred eighteen thousand, one hundred twenty-one".