9169997 has 4 divisors (see below), whose sum is σ = 9177276. Its totient is φ = 9162720.

The previous prime is 9169967. The next prime is 9169999. The reversal of 9169997 is 7999619.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3759721 + 5410276 = 1939^2 + 2326^2 .

It is a cyclic number.

It is not a de Polignac number, because 9169997 - 2⁶ = 9169933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9169999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208 + ... + 4449.

It is an arithmetic number, because the mean of its divisors is an integer number (2294319).

Almost surely, 2^9169997 is an apocalyptic number.

It is an amenable number.

9169997 is a deficient number, since it is larger than the sum of its proper divisors (7279).

9169997 is a wasteful number, since it uses less digits than its factorization.

9169997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278.

The product of its digits is 275562, while the sum is 50.

The square root of 9169997 is about 3028.2002906017. The cubic root of 9169997 is about 209.3098811971.

The spelling of 9169997 in words is "nine million, one hundred sixty-nine thousand, nine hundred ninety-seven".