8212841 has 12 divisors (see below), whose sum is σ = 10289412. Its totient is φ = 6497568.

The previous prime is 8212837. The next prime is 8212847. The reversal of 8212841 is 1482128.

It can be written as a sum of positive squares in 2 ways, for example, as 2941225 + 5271616 = 1715^2 + 2296^2 .

It is not a de Polignac number, because 8212841 - 2² = 8212837 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8212841.

It is not an unprimeable number, because it can be changed into a prime (8212847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5810 + ... + 7083.

It is an arithmetic number, because the mean of its divisors is an integer number (857451).

Almost surely, 2^8212841 is an apocalyptic number.

It is an amenable number.

8212841 is a deficient number, since it is larger than the sum of its proper divisors (2076571).

8212841 is a wasteful number, since it uses less digits than its factorization.

8212841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12920 (or 12913 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

The square root of 8212841 is about 2865.8054714164. The cubic root of 8212841 is about 201.7581738337.

Adding to 8212841 its reverse (1482128), we get a palindrome (9694969).

The spelling of 8212841 in words is "eight million, two hundred twelve thousand, eight hundred forty-one".