8998448997 has 4 divisors (see below), whose sum is σ = 11997932000. Its totient is φ = 5998965996.

The previous prime is 8998448989. The next prime is 8998449023. The reversal of 8998448997 is 7998448998.

8998448997 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8998448997 - 2³ = 8998448989 is a prime.

It is a super-2 number, since 2×8998448997² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8998428997) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1499741497 + ... + 1499741502.

It is an arithmetic number, because the mean of its divisors is an integer number (2999483000).

Almost surely, 2^8998448997 is an apocalyptic number.

It is an amenable number.

8998448997 is a deficient number, since it is larger than the sum of its proper divisors (2999483003).

8998448997 is a wasteful number, since it uses less digits than its factorization.

8998448997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999483002.

The product of its digits is 376233984, while the sum is 75.

The square root of 8998448997 is about 94860.1549492726. The cubic root of 8998448997 is about 2079.9643266965.

Subtracting from 8998448997 its reverse (7998448998), we obtain a palindrome (999999999).

The spelling of 8998448997 in words is "eight billion, nine hundred ninety-eight million, four hundred forty-eight thousand, nine hundred ninety-seven".