8534521 has 2 divisors, whose sum is σ = 8534522. Its totient is φ = 8534520.

The previous prime is 8534509. The next prime is 8534543. The reversal of 8534521 is 1254358.

8534521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6175225 + 2359296 = 2485^2 + 1536^2 .

It is a cyclic number.

It is not a de Polignac number, because 8534521 - 2⁵ = 8534489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8534521.

It is not a weakly prime, because it can be changed into another prime (8534621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4267260 + 4267261.

It is an arithmetic number, because the mean of its divisors is an integer number (4267261).

Almost surely, 2^8534521 is an apocalyptic number.

It is an amenable number.

8534521 is a deficient number, since it is larger than the sum of its proper divisors (1).

8534521 is an equidigital number, since it uses as much as digits as its factorization.

8534521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 28.

The square root of 8534521 is about 2921.3902512331. The cubic root of 8534521 is about 204.3586619503.

Adding to 8534521 its reverse (1254358), we get a palindrome (9788879).

The spelling of 8534521 in words is "eight million, five hundred thirty-four thousand, five hundred twenty-one".