9898145 has 16 divisors (see below), whose sum is σ = 12910080. Its totient is φ = 7257600.

The previous prime is 9898139. The next prime is 9898151. The reversal of 9898145 is 5418989.

It is an interprime number because it is at equal distance from previous prime (9898139) and next prime (9898151).

It is not a de Polignac number, because 9898145 - 2⁶ = 9898081 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 9898096 and 9898105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1265 + ... + 4625.

It is an arithmetic number, because the mean of its divisors is an integer number (806880).

Almost surely, 2^9898145 is an apocalyptic number.

9898145 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9898145 is a deficient number, since it is larger than the sum of its proper divisors (3011935).

9898145 is a wasteful number, since it uses less digits than its factorization.

9898145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416.

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

The square root of 9898145 is about 3146.1317518502. The cubic root of 9898145 is about 214.7095049190.

The spelling of 9898145 in words is "nine million, eight hundred ninety-eight thousand, one hundred forty-five".