9969827173 has 2 divisors, whose sum is σ = 9969827174. Its totient is φ = 9969827172.

The previous prime is 9969827159. The next prime is 9969827213. The reversal of 9969827173 is 3717289699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6577696609 + 3392130564 = 81103^2 + 58242^2 .

It is a cyclic number.

It is not a de Polignac number, because 9969827173 - 2³³ = 1379892581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9969827143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984913586 + 4984913587.

It is an arithmetic number, because the mean of its divisors is an integer number (4984913587).

Almost surely, 2^9969827173 is an apocalyptic number.

It is an amenable number.

9969827173 is a deficient number, since it is larger than the sum of its proper divisors (1).

9969827173 is an equidigital number, since it uses as much as digits as its factorization.

9969827173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 61.

The square root of 9969827173 is about 99849.0218930561. The cubic root of 9969827173 is about 2152.2656608694.

The spelling of 9969827173 in words is "nine billion, nine hundred sixty-nine million, eight hundred twenty-seven thousand, one hundred seventy-three".