9898438 has 8 divisors (see below), whose sum is σ = 16197480. Its totient is φ = 4499280.

The previous prime is 9898433. The next prime is 9898451. The reversal of 9898438 is 8348989.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 9898391 and 9898400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898433) 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 3 ways as a sum of consecutive naturals, for example, 224943 + ... + 224986.

It is an arithmetic number, because the mean of its divisors is an integer number (2024685).

Almost surely, 2^9898438 is an apocalyptic number.

9898438 is a deficient number, since it is larger than the sum of its proper divisors (6299042).

9898438 is a wasteful number, since it uses less digits than its factorization.

9898438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449942.

The product of its digits is 497664, while the sum is 49.

The square root of 9898438 is about 3146.1783166248. The cubic root of 9898438 is about 214.7116234730.

The spelling of 9898438 in words is "nine million, eight hundred ninety-eight thousand, four hundred thirty-eight".