8204121 has 24 divisors (see below), whose sum is σ = 12377664. Its totient is φ = 5231520.

The previous prime is 8204113. The next prime is 8204167. The reversal of 8204121 is 1214028.

8204121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8204121 - 2³ = 8204113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8204094 and 8204103.

It is not an unprimeable number, because it can be changed into a prime (8204101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23470 + ... + 23816.

It is an arithmetic number, because the mean of its divisors is an integer number (515736).

Almost surely, 2^8204121 is an apocalyptic number.

It is an amenable number.

8204121 is a deficient number, since it is larger than the sum of its proper divisors (4173543).

8204121 is a wasteful number, since it uses less digits than its factorization.

8204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 8204121 is about 2864.2836800848. The cubic root of 8204121 is about 201.6867428351.

Adding to 8204121 its reverse (1214028), we get a palindrome (9418149).

The spelling of 8204121 in words is "eight million, two hundred four thousand, one hundred twenty-one".