9808398863 has 4 divisors (see below), whose sum is σ = 10385363520. Its totient is φ = 9231434208.

The previous prime is 9808398851. The next prime is 9808398913. The reversal of 9808398863 is 3688938089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3688938089 = 42299 ⋅87211.

It is a cyclic number.

It is not a de Polignac number, because 9808398863 - 2¹⁰ = 9808397839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9808398796 and 9808398805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9808398833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288482303 + ... + 288482336.

It is an arithmetic number, because the mean of its divisors is an integer number (2596340880).

Almost surely, 2^9808398863 is an apocalyptic number.

9808398863 is a deficient number, since it is larger than the sum of its proper divisors (576964657).

9808398863 is a wasteful number, since it uses less digits than its factorization.

9808398863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576964656.

The product of its (nonzero) digits is 17915904, while the sum is 62.

The square root of 9808398863 is about 99037.3609452514. The cubic root of 9808398863 is about 2140.5861252259.

The spelling of 9808398863 in words is "nine billion, eight hundred eight million, three hundred ninety-eight thousand, eight hundred sixty-three".