9898597 has 2 divisors, whose sum is σ = 9898598. Its totient is φ = 9898596.

The previous prime is 9898571. The next prime is 9898613. The reversal of 9898597 is 7958989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9696996 + 201601 = 3114^2 + 449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9898597 is a prime.

9898597 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9898547) 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, 4949298 + 4949299.

It is an arithmetic number, because the mean of its divisors is an integer number (4949299).

Almost surely, 2^9898597 is an apocalyptic number.

It is an amenable number.

9898597 is a deficient number, since it is larger than the sum of its proper divisors (1).

9898597 is an equidigital number, since it uses as much as digits as its factorization.

9898597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 55.

The square root of 9898597 is about 3146.2035852754. The cubic root of 9898597 is about 214.7127731145.

The spelling of 9898597 in words is "nine million, eight hundred ninety-eight thousand, five hundred ninety-seven".