8209241 has 2 divisors, whose sum is σ = 8209242. Its totient is φ = 8209240.

The previous prime is 8209237. The next prime is 8209261. The reversal of 8209241 is 1429028.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8065600 + 143641 = 2840^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 8209241 - 2² = 8209237 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

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 8209241.

It is not a weakly prime, because it can be changed into another prime (8209211) 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 as a sum of consecutive naturals, namely, 4104620 + 4104621.

It is an arithmetic number, because the mean of its divisors is an integer number (4104621).

Almost surely, 2^8209241 is an apocalyptic number.

It is an amenable number.

8209241 is a deficient number, since it is larger than the sum of its proper divisors (1).

8209241 is an equidigital number, since it uses as much as digits as its factorization.

8209241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 8209241 is about 2865.1773069044. The cubic root of 8209241 is about 201.7286901029.

The spelling of 8209241 in words is "eight million, two hundred nine thousand, two hundred forty-one".