8522401 has 2 divisors, whose sum is σ = 8522402. Its totient is φ = 8522400.

The previous prime is 8522363. The next prime is 8522407. The reversal of 8522401 is 1042258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8381025 + 141376 = 2895^2 + 376^2 .

It is a cyclic number.

It is not a de Polignac number, because 8522401 - 2¹¹ = 8520353 is a prime.

It is a Chen prime.

8522401 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8522407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4261200 + 4261201.

It is an arithmetic number, because the mean of its divisors is an integer number (4261201).

Almost surely, 2^8522401 is an apocalyptic number.

It is an amenable number.

8522401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8522401 is an equidigital number, since it uses as much as digits as its factorization.

8522401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8522401 is about 2919.3151594167. The cubic root of 8522401 is about 204.2618785311.

Adding to 8522401 its reverse (1042258), we get a palindrome (9564659).

The spelling of 8522401 in words is "eight million, five hundred twenty-two thousand, four hundred one".