9879532717 has 2 divisors, whose sum is σ = 9879532718. Its totient is φ = 9879532716.

The previous prime is 9879532697. The next prime is 9879532727. The reversal of 9879532717 is 7172359789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9764206596 + 115326121 = 98814^2 + 10739^2 .

It is a cyclic number.

It is not a de Polignac number, because 9879532717 - 2²³ = 9871144109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9879532727) 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, 4939766358 + 4939766359.

It is an arithmetic number, because the mean of its divisors is an integer number (4939766359).

Almost surely, 2^9879532717 is an apocalyptic number.

It is an amenable number.

9879532717 is a deficient number, since it is larger than the sum of its proper divisors (1).

9879532717 is an equidigital number, since it uses as much as digits as its factorization.

9879532717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6667920, while the sum is 58.

The square root of 9879532717 is about 99395.8385295884. The cubic root of 9879532717 is about 2145.7484192570.

The spelling of 9879532717 in words is "nine billion, eight hundred seventy-nine million, five hundred thirty-two thousand, seven hundred seventeen".