9898743 has 8 divisors (see below), whose sum is σ = 13974768. Its totient is φ = 6210944.

The previous prime is 9898723. The next prime is 9898769. The reversal of 9898743 is 3478989.

9898743 is digitally balanced in base 3, because in such base 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 a cyclic number.

It is not a de Polignac number, because 9898743 - 2⁵ = 9898711 is a prime.

It is a super-2 number, since 2×9898743² = 195970225960098, which contains 22 as substring.

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 = 9898692 and 9898701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898723) 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, 96996 + ... + 97097.

It is an arithmetic number, because the mean of its divisors is an integer number (1746846).

Almost surely, 2^9898743 is an apocalyptic number.

9898743 is a deficient number, since it is larger than the sum of its proper divisors (4076025).

9898743 is a wasteful number, since it uses less digits than its factorization.

9898743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194113.

The product of its digits is 435456, while the sum is 48.

The square root of 9898743 is about 3146.2267877570. The cubic root of 9898743 is about 214.7138287493.

The spelling of 9898743 in words is "nine million, eight hundred ninety-eight thousand, seven hundred forty-three".