9898931 has 12 divisors (see below), whose sum is σ = 11573280. Its totient is φ = 8442000.

The previous prime is 9898921. The next prime is 9898979. The reversal of 9898931 is 1398989.

It is not a de Polignac number, because 9898931 - 2²² = 5704627 is a prime.

It is a super-2 number, since 2×9898931² = 195977669885522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9898921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12806 + ... + 13556.

It is an arithmetic number, because the mean of its divisors is an integer number (964440).

Almost surely, 2^9898931 is an apocalyptic number.

9898931 is a deficient number, since it is larger than the sum of its proper divisors (1674349).

9898931 is a wasteful number, since it uses less digits than its factorization.

9898931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1027 counting only the distinct ones).

The product of its digits is 139968, while the sum is 47.

The square root of 9898931 is about 3146.2566646731. The cubic root of 9898931 is about 214.7151880446.

The spelling of 9898931 in words is "nine million, eight hundred ninety-eight thousand, nine hundred thirty-one".