9697601609 has 2 divisors, whose sum is σ = 9697601610. Its totient is φ = 9697601608.

The previous prime is 9697601597. The next prime is 9697601623. The reversal of 9697601609 is 9061067969.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6964403209 + 2733198400 = 83453^2 + 52280^2 .

It is a cyclic number.

It is not a de Polignac number, because 9697601609 - 2⁴ = 9697601593 is a prime.

It is not a weakly prime, because it can be changed into another prime (9697601659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4848800804 + 4848800805.

It is an arithmetic number, because the mean of its divisors is an integer number (4848800805).

Almost surely, 2^9697601609 is an apocalyptic number.

It is an amenable number.

9697601609 is a deficient number, since it is larger than the sum of its proper divisors (1).

9697601609 is an equidigital number, since it uses as much as digits as its factorization.

9697601609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 9697601609 is about 98476.4012796975. The cubic root of 9697601609 is about 2132.4954485256.

The spelling of 9697601609 in words is "nine billion, six hundred ninety-seven million, six hundred one thousand, six hundred nine".