9808798247 has 8 divisors (see below), whose sum is σ = 10236351840. Its totient is φ = 9381335040.

The previous prime is 9808798243. The next prime is 9808798249. The reversal of 9808798247 is 7428978089.

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 9808798247 - 2² = 9808798243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9808798247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9808798243) 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, 293279 + ... + 325007.

It is an arithmetic number, because the mean of its divisors is an integer number (1279543980).

Almost surely, 2^9808798247 is an apocalyptic number.

9808798247 is a deficient number, since it is larger than the sum of its proper divisors (427553593).

9808798247 is a wasteful number, since it uses less digits than its factorization.

9808798247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45193.

The product of its (nonzero) digits is 16257024, while the sum is 62.

The square root of 9808798247 is about 99039.3772547061. The cubic root of 9808798247 is about 2140.6151787020.

The spelling of 9808798247 in words is "nine billion, eight hundred eight million, seven hundred ninety-eight thousand, two hundred forty-seven".