9477609917 has 2 divisors, whose sum is σ = 9477609918. Its totient is φ = 9477609916.

The previous prime is 9477609907. The next prime is 9477609923. The reversal of 9477609917 is 7199067749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7810847641 + 1666762276 = 88379^2 + 40826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9477609917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9477609907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4738804958 + 4738804959.

It is an arithmetic number, because the mean of its divisors is an integer number (4738804959).

Almost surely, 2^9477609917 is an apocalyptic number.

It is an amenable number.

9477609917 is a deficient number, since it is larger than the sum of its proper divisors (1).

9477609917 is an equidigital number, since it uses as much as digits as its factorization.

9477609917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6001128, while the sum is 59.

The square root of 9477609917 is about 97353.0169897163. The cubic root of 9477609917 is about 2116.2466158539.

The spelling of 9477609917 in words is "nine billion, four hundred seventy-seven million, six hundred nine thousand, nine hundred seventeen".