8121841 has 16 divisors (see below), whose sum is σ = 10080000. Its totient is φ = 6372288.

The previous prime is 8121823. The next prime is 8121847. The reversal of 8121841 is 1481218.

It is not a de Polignac number, because 8121841 - 2¹⁹ = 7597553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8121847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13260 + ... + 13858.

It is an arithmetic number, because the mean of its divisors is an integer number (630000).

Almost surely, 2^8121841 is an apocalyptic number.

It is an amenable number.

8121841 is a deficient number, since it is larger than the sum of its proper divisors (1958159).

8121841 is a wasteful number, since it uses less digits than its factorization.

8121841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its digits is 512, while the sum is 25.

The square root of 8121841 is about 2849.8843836198. The cubic root of 8121841 is about 201.0102302492.

The spelling of 8121841 in words is "eight million, one hundred twenty-one thousand, eight hundred forty-one".