8997736641 has 8 divisors (see below), whose sum is σ = 11997507744. Its totient is φ = 5998228320.

The previous prime is 8997736613. The next prime is 8997736651. The reversal of 8997736641 is 1466377998.

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

It is not a de Polignac number, because 8997736641 - 2³⁰ = 7923994817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8997736651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37245 + ... + 139221.

It is an arithmetic number, because the mean of its divisors is an integer number (1499688468).

Almost surely, 2^8997736641 is an apocalyptic number.

It is an amenable number.

8997736641 is a deficient number, since it is larger than the sum of its proper divisors (2999771103).

8997736641 is a wasteful number, since it uses less digits than its factorization.

8997736641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131391.

The product of its digits is 13716864, while the sum is 60.

The square root of 8997736641 is about 94856.4001056334. The cubic root of 8997736641 is about 2079.9094389350.

The spelling of 8997736641 in words is "eight billion, nine hundred ninety-seven million, seven hundred thirty-six thousand, six hundred forty-one".