9098521 has 2 divisors, whose sum is σ = 9098522. Its totient is φ = 9098520.

The previous prime is 9098513. The next prime is 9098527. The reversal of 9098521 is 1258909.

9098521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9066121 + 32400 = 3011^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 9098521 - 2³ = 9098513 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (9098527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4549260 + 4549261.

It is an arithmetic number, because the mean of its divisors is an integer number (4549261).

Almost surely, 2^9098521 is an apocalyptic number.

It is an amenable number.

9098521 is a deficient number, since it is larger than the sum of its proper divisors (1).

9098521 is an equidigital number, since it uses as much as digits as its factorization.

9098521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 9098521 is about 3016.3754739753. The cubic root of 9098521 is about 208.7646366445.

The spelling of 9098521 in words is "nine million, ninety-eight thousand, five hundred twenty-one".