8997657999 has 8 divisors (see below), whose sum is σ = 13087502592. Its totient is φ = 5453126040.

The previous prime is 8997657971. The next prime is 8997658003. The reversal of 8997657999 is 9997567998.

8997657999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8997657999 - 2¹³ = 8997649807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8997657959) 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 7 ways as a sum of consecutive naturals, for example, 136328119 + ... + 136328184.

It is an arithmetic number, because the mean of its divisors is an integer number (1635937824).

Almost surely, 2^8997657999 is an apocalyptic number.

8997657999 is a deficient number, since it is larger than the sum of its proper divisors (4089844593).

8997657999 is a wasteful number, since it uses less digits than its factorization.

8997657999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272656317.

The product of its digits is 694416240, while the sum is 78.

The square root of 8997657999 is about 94855.9855728673. The cubic root of 8997657999 is about 2079.9033793105.

Subtracting 8997657999 from its reverse (9997567998), we obtain a palindrome (999909999).

The spelling of 8997657999 in words is "eight billion, nine hundred ninety-seven million, six hundred fifty-seven thousand, nine hundred ninety-nine".