9898541 has 8 divisors (see below), whose sum is σ = 10304280. Its totient is φ = 9497152.

The previous prime is 9898519. The next prime is 9898543. The reversal of 9898541 is 1458989.

It can be written as a sum of positive squares in 4 ways, for example, as 2220100 + 7678441 = 1490^2 + 2771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9898541 is a prime.

It is a super-2 number, since 2×9898541² = 195962227857362, which contains 22 as substring.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9898492 and 9898501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898543) 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 in 7 ways as a sum of consecutive naturals, for example, 4031 + ... + 6003.

It is an arithmetic number, because the mean of its divisors is an integer number (1288035).

Almost surely, 2^9898541 is an apocalyptic number.

It is an amenable number.

9898541 is a deficient number, since it is larger than the sum of its proper divisors (405739).

9898541 is a wasteful number, since it uses less digits than its factorization.

9898541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175.

The product of its digits is 103680, while the sum is 44.

The square root of 9898541 is about 3146.1946856480. The cubic root of 9898541 is about 214.7123682108.

The spelling of 9898541 in words is "nine million, eight hundred ninety-eight thousand, five hundred forty-one".