9687166943 has 2 divisors, whose sum is σ = 9687166944. Its totient is φ = 9687166942.

The previous prime is 9687166903. The next prime is 9687166949. The reversal of 9687166943 is 3496617869.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9687166943 - 2¹⁶ = 9687101407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9687166949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4843583471 + 4843583472.

It is an arithmetic number, because the mean of its divisors is an integer number (4843583472).

Almost surely, 2^9687166943 is an apocalyptic number.

9687166943 is a deficient number, since it is larger than the sum of its proper divisors (1).

9687166943 is an equidigital number, since it uses as much as digits as its factorization.

9687166943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11757312, while the sum is 59.

The square root of 9687166943 is about 98423.4064793533. The cubic root of 9687166943 is about 2131.7303155760.

The spelling of 9687166943 in words is "nine billion, six hundred eighty-seven million, one hundred sixty-six thousand, nine hundred forty-three".