9984418249 has 4 divisors (see below), whose sum is σ = 10752450436. Its totient is φ = 9216386064.

The previous prime is 9984418247. The next prime is 9984418253. The reversal of 9984418249 is 9428144899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9428144899 = 37 ⋅254814727.

It can be written as a sum of positive squares in 2 ways, for example, as 2212761600 + 7771656649 = 47040^2 + 88157^2 .

It is a cyclic number.

It is not a de Polignac number, because 9984418249 - 2¹ = 9984418247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9984418193 and 9984418202.

It is not an unprimeable number, because it can be changed into a prime (9984418247) 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, 384016074 + ... + 384016099.

It is an arithmetic number, because the mean of its divisors is an integer number (2688112609).

Almost surely, 2^9984418249 is an apocalyptic number.

It is an amenable number.

9984418249 is a deficient number, since it is larger than the sum of its proper divisors (768032187).

9984418249 is a wasteful number, since it uses less digits than its factorization.

9984418249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768032186.

The product of its digits is 5971968, while the sum is 58.

The square root of 9984418249 is about 99922.0608724620. The cubic root of 9984418249 is about 2153.3151128351.

The spelling of 9984418249 in words is "nine billion, nine hundred eighty-four million, four hundred eighteen thousand, two hundred forty-nine".