8997324397 has 4 divisors (see below), whose sum is σ = 9000476476. Its totient is φ = 8994172320.

The previous prime is 8997324383. The next prime is 8997324407. The reversal of 8997324397 is 7934237998.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5638658281 + 3358666116 = 75091^2 + 57954^2 .

It is a cyclic number.

It is not a de Polignac number, because 8997324397 - 2¹¹ = 8997322349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8997324097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571754 + ... + 1577467.

It is an arithmetic number, because the mean of its divisors is an integer number (2250119119).

Almost surely, 2^8997324397 is an apocalyptic number.

It is an amenable number.

8997324397 is a deficient number, since it is larger than the sum of its proper divisors (3152079).

8997324397 is a wasteful number, since it uses less digits than its factorization.

8997324397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152078.

The product of its digits is 20575296, while the sum is 61.

The square root of 8997324397 is about 94854.2270908366. The cubic root of 8997324397 is about 2079.8776737879.

The spelling of 8997324397 in words is "eight billion, nine hundred ninety-seven million, three hundred twenty-four thousand, three hundred ninety-seven".