9904497497 has 2 divisors, whose sum is σ = 9904497498. Its totient is φ = 9904497496.

The previous prime is 9904497457. The next prime is 9904497523. The reversal of 9904497497 is 7947944099.

9904497497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9233480281 + 671017216 = 96091^2 + 25904^2 .

It is a cyclic number.

It is not a de Polignac number, because 9904497497 - 2⁶ = 9904497433 is a prime.

It is not a weakly prime, because it can be changed into another prime (9904497457) 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, 4952248748 + 4952248749.

It is an arithmetic number, because the mean of its divisors is an integer number (4952248749).

Almost surely, 2^9904497497 is an apocalyptic number.

It is an amenable number.

9904497497 is a deficient number, since it is larger than the sum of its proper divisors (1).

9904497497 is an equidigital number, since it uses as much as digits as its factorization.

9904497497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The square root of 9904497497 is about 99521.3419171988. The cubic root of 9904497497 is about 2147.5542765854.

The spelling of 9904497497 in words is "nine billion, nine hundred four million, four hundred ninety-seven thousand, four hundred ninety-seven".