9898245 has 54 divisors (see below), whose sum is σ = 20260422. Its totient is φ = 4457376.

The previous prime is 9898243. The next prime is 9898271. The reversal of 9898245 is 5428989.

It can be written as a sum of positive squares in only one way, i.e., 7918596 + 1979649 = 2814^2 + 1407^2 .

It is not a de Polignac number, because 9898245 - 2¹ = 9898243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9898245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898241) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 147702 + ... + 147768.

It is an arithmetic number, because the mean of its divisors is an integer number (375193).

Almost surely, 2^9898245 is an apocalyptic number.

It is an amenable number.

9898245 is an abundant number, since it is smaller than the sum of its proper divisors (10362177).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9898245 is a wasteful number, since it uses less digits than its factorization.

9898245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 82 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 9898245 is about 3146.1476443422. The cubic root of 9898245 is about 214.7102279797.

Multiplying 9898245 by its sum of digits (45), we get a square (445421025 = 21105²).

9898245 divided by its sum of digits (45) gives a square (219961 = 469²).

The spelling of 9898245 in words is "nine million, eight hundred ninety-eight thousand, two hundred forty-five".