9798148217 has 16 divisors (see below), whose sum is σ = 11640464640. Its totient is φ = 8129827200.

The previous prime is 9798148183. The next prime is 9798148313. The reversal of 9798148217 is 7128418979.

It is not a de Polignac number, because 9798148217 - 2⁶ = 9798148153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9798118217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372209 + ... + 397662.

It is an arithmetic number, because the mean of its divisors is an integer number (727529040).

Almost surely, 2^9798148217 is an apocalyptic number.

It is an amenable number.

9798148217 is a deficient number, since it is larger than the sum of its proper divisors (1842316423).

9798148217 is a wasteful number, since it uses less digits than its factorization.

9798148217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769984.

The product of its digits is 2032128, while the sum is 56.

The square root of 9798148217 is about 98985.5960077020. The cubic root of 9798148217 is about 2139.8401645697.

The spelling of 9798148217 in words is "nine billion, seven hundred ninety-eight million, one hundred forty-eight thousand, two hundred seventeen".