9913045897 has 2 divisors, whose sum is σ = 9913045898. Its totient is φ = 9913045896.

The previous prime is 9913045859. The next prime is 9913045939. The reversal of 9913045897 is 7985403199.

9913045897 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., 5507272521 + 4405773376 = 74211^2 + 66376^2 .

It is a cyclic number.

It is not a de Polignac number, because 9913045897 - 2¹⁵ = 9913013129 is a prime.

It is not a weakly prime, because it can be changed into another prime (9913045397) 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, 4956522948 + 4956522949.

It is an arithmetic number, because the mean of its divisors is an integer number (4956522949).

Almost surely, 2^9913045897 is an apocalyptic number.

It is an amenable number.

9913045897 is a deficient number, since it is larger than the sum of its proper divisors (1).

9913045897 is an equidigital number, since it uses as much as digits as its factorization.

9913045897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The square root of 9913045897 is about 99564.2802263944. The cubic root of 9913045897 is about 2148.1719378711.

The spelling of 9913045897 in words is "nine billion, nine hundred thirteen million, forty-five thousand, eight hundred ninety-seven".