8997926389 has 2 divisors, whose sum is σ = 8997926390. Its totient is φ = 8997926388.

The previous prime is 8997926383. The next prime is 8997926401. The reversal of 8997926389 is 9836297998.

8997926389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5465644900 + 3532281489 = 73930^2 + 59433^2 .

It is a cyclic number.

It is not a de Polignac number, because 8997926389 - 2⁷ = 8997926261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8997926383) 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 as a sum of consecutive naturals, namely, 4498963194 + 4498963195.

It is an arithmetic number, because the mean of its divisors is an integer number (4498963195).

Almost surely, 2^8997926389 is an apocalyptic number.

It is an amenable number.

8997926389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8997926389 is an equidigital number, since it uses as much as digits as its factorization.

8997926389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105815808, while the sum is 70.

The square root of 8997926389 is about 94857.4002859028. The cubic root of 8997926389 is about 2079.9240594963.

The spelling of 8997926389 in words is "eight billion, nine hundred ninety-seven million, nine hundred twenty-six thousand, three hundred eighty-nine".