8731118897 has 2 divisors, whose sum is σ = 8731118898. Its totient is φ = 8731118896.

The previous prime is 8731118881. The next prime is 8731118909. The reversal of 8731118897 is 7988111378.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6310872481 + 2420246416 = 79441^2 + 49196^2 .

It is a cyclic number.

It is not a de Polignac number, because 8731118897 - 2⁴ = 8731118881 is a prime.

It is not a weakly prime, because it can be changed into another prime (8731118857) 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 as a sum of consecutive naturals, namely, 4365559448 + 4365559449.

It is an arithmetic number, because the mean of its divisors is an integer number (4365559449).

Almost surely, 2^8731118897 is an apocalyptic number.

It is an amenable number.

8731118897 is a deficient number, since it is larger than the sum of its proper divisors (1).

8731118897 is an equidigital number, since it uses as much as digits as its factorization.

8731118897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 53.

The square root of 8731118897 is about 93440.4564254692. The cubic root of 8731118897 is about 2059.1594032416.

The spelling of 8731118897 in words is "eight billion, seven hundred thirty-one million, one hundred eighteen thousand, eight hundred ninety-seven".