8997347651 has 4 divisors (see below), whose sum is σ = 9287584704. Its totient is φ = 8707110600.

The previous prime is 8997347629. The next prime is 8997347669. The reversal of 8997347651 is 1567437998.

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

It is a cyclic number.

It is not a de Polignac number, because 8997347651 - 2²² = 8993153347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8997347251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145118480 + ... + 145118541.

It is an arithmetic number, because the mean of its divisors is an integer number (2321896176).

Almost surely, 2^8997347651 is an apocalyptic number.

8997347651 is a deficient number, since it is larger than the sum of its proper divisors (290237053).

8997347651 is a wasteful number, since it uses less digits than its factorization.

8997347651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290237052.

The product of its digits is 11430720, while the sum is 59.

The square root of 8997347651 is about 94854.3496683204. The cubic root of 8997347651 is about 2079.8794656330.

It can be divided in two parts, 8997347 and 651, that added together give a palindrome (8997998).

The spelling of 8997347651 in words is "eight billion, nine hundred ninety-seven million, three hundred forty-seven thousand, six hundred fifty-one".