9798242977 has 4 divisors (see below), whose sum is σ = 9983115540. Its totient is φ = 9613370416.

The previous prime is 9798242957. The next prime is 9798242983. The reversal of 9798242977 is 7792428979.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7792428979 = 19 ⋅410127841.

It can be written as a sum of positive squares in 2 ways, for example, as 8701904656 + 1096338321 = 93284^2 + 33111^2 .

It is a cyclic number.

It is not a de Polignac number, because 9798242977 - 2³¹ = 7650759329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9798242947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92436202 + ... + 92436307.

It is an arithmetic number, because the mean of its divisors is an integer number (2495778885).

Almost surely, 2^9798242977 is an apocalyptic number.

It is an amenable number.

9798242977 is a deficient number, since it is larger than the sum of its proper divisors (184872563).

9798242977 is a wasteful number, since it uses less digits than its factorization.

9798242977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184872562.

The product of its digits is 32006016, while the sum is 64.

The square root of 9798242977 is about 98986.0746620453. The cubic root of 9798242977 is about 2139.8470628324.

The spelling of 9798242977 in words is "nine billion, seven hundred ninety-eight million, two hundred forty-two thousand, nine hundred seventy-seven".