It is a happy number.
9898741 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1478989 = 467 ⋅3167.
It is a cyclic number.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
9898741 is a lucky number.
It is a congruent number.
Almost surely, 29898741 is an apocalyptic number.
It is an amenable number.
9898741 is a wasteful number, since it uses less digits than its factorization.
9898741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6442.
The square root of 9898741 is about 3146.2264699160. The cubic root of 9898741 is about 214.7138142887.
The spelling of 9898741 in words is "nine million, eight hundred ninety-eight thousand, seven hundred forty-one".