9888898834 has 4 divisors (see below), whose sum is σ = 14833348254. Its totient is φ = 4944449416.

The previous prime is 9888898771. The next prime is 9888898843. The reversal of 9888898834 is 4388988889.

9888898834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4990998609 + 4897900225 = 70647^2 + 69985^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2472224707 + ... + 2472224710.

Almost surely, 2^9888898834 is an apocalyptic number.

9888898834 is a deficient number, since it is larger than the sum of its proper divisors (4944449420).

9888898834 is a wasteful number, since it uses less digits than its factorization.

9888898834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944449419.

The product of its digits is 254803968, while the sum is 73.

The square root of 9888898834 is about 99442.9426052950. The cubic root of 9888898834 is about 2146.4262847557.

The spelling of 9888898834 in words is "nine billion, eight hundred eighty-eight million, eight hundred ninety-eight thousand, eight hundred thirty-four".