9898143 has 8 divisors (see below), whose sum is σ = 13378608. Its totient is φ = 6508224.

The previous prime is 9898139. The next prime is 9898151. The reversal of 9898143 is 3418989.

9898143 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9898143 - 2² = 9898139 is a prime.

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

9898143 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9898095 and 9898104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22380 + ... + 22817.

It is an arithmetic number, because the mean of its divisors is an integer number (1672326).

Almost surely, 2^9898143 is an apocalyptic number.

9898143 is a deficient number, since it is larger than the sum of its proper divisors (3480465).

9898143 is a wasteful number, since it uses less digits than its factorization.

9898143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45273.

The product of its digits is 62208, while the sum is 42.

The square root of 9898143 is about 3146.1314339995. The cubic root of 9898143 is about 214.7094904578.

The spelling of 9898143 in words is "nine million, eight hundred ninety-eight thousand, one hundred forty-three".