9166306973 has 2 divisors, whose sum is σ = 9166306974. Its totient is φ = 9166306972.

The previous prime is 9166306949. The next prime is 9166306991. The reversal of 9166306973 is 3796036619.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5384917924 + 3781389049 = 73382^2 + 61493^2 .

It is a cyclic number.

It is not a de Polignac number, because 9166306973 - 2¹⁰ = 9166305949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9166326973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4583153486 + 4583153487.

It is an arithmetic number, because the mean of its divisors is an integer number (4583153487).

Almost surely, 2^9166306973 is an apocalyptic number.

It is an amenable number.

9166306973 is a deficient number, since it is larger than the sum of its proper divisors (1).

9166306973 is an equidigital number, since it uses as much as digits as its factorization.

9166306973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1102248, while the sum is 50.

The square root of 9166306973 is about 95740.8323182956. The cubic root of 9166306973 is about 2092.8180184460.

The spelling of 9166306973 in words is "nine billion, one hundred sixty-six million, three hundred six thousand, nine hundred seventy-three".