9898975 has 6 divisors (see below), whose sum is σ = 12274760. Its totient is φ = 7919160.

The previous prime is 9898921. The next prime is 9898979. The reversal of 9898975 is 5798989.

It is not a de Polignac number, because 9898975 - 2¹¹ = 9896927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197955 + ... + 198004.

Almost surely, 2^9898975 is an apocalyptic number.

9898975 is a deficient number, since it is larger than the sum of its proper divisors (2375785).

9898975 is a wasteful number, since it uses less digits than its factorization.

9898975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395969 (or 395964 counting only the distinct ones).

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

The square root of 9898975 is about 3146.2636571019. The cubic root of 9898975 is about 214.7155061751.

The spelling of 9898975 in words is "nine million, eight hundred ninety-eight thousand, nine hundred seventy-five".