8218241 has 4 divisors (see below), whose sum is σ = 8650800. Its totient is φ = 7785684.

The previous prime is 8218229. The next prime is 8218253. The reversal of 8218241 is 1428128.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (8218229) and next prime (8218253).

It is a cyclic number.

It is not a de Polignac number, because 8218241 - 2¹⁴ = 8201857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8218241.

It is not an unprimeable number, because it can be changed into a prime (8218201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216251 + ... + 216288.

It is an arithmetic number, because the mean of its divisors is an integer number (2162700).

Almost surely, 2^8218241 is an apocalyptic number.

It is an amenable number.

8218241 is a deficient number, since it is larger than the sum of its proper divisors (432559).

8218241 is a wasteful number, since it uses less digits than its factorization.

8218241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432558.

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

The square root of 8218241 is about 2866.7474601018. The cubic root of 8218241 is about 201.8023832793.

The spelling of 8218241 in words is "eight million, two hundred eighteen thousand, two hundred forty-one".