9166989 has 8 divisors (see below), whose sum is σ = 13162912. Its totient is φ = 5641200.

The previous prime is 9166981. The next prime is 9167003. The reversal of 9166989 is 9896619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9166989 - 2³ = 9166981 is a prime.

It is a super-2 number, since 2×9166989² = 168067374652242, which contains 22 as substring.

It is a Duffinian number.

9166989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9166981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117487 + ... + 117564.

It is an arithmetic number, because the mean of its divisors is an integer number (1645364).

Almost surely, 2^9166989 is an apocalyptic number.

It is an amenable number.

9166989 is a deficient number, since it is larger than the sum of its proper divisors (3995923).

9166989 is a wasteful number, since it uses less digits than its factorization.

9166989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235067.

The product of its digits is 209952, while the sum is 48.

The square root of 9166989 is about 3027.7035852276. The cubic root of 9166989 is about 209.2869923137.

The spelling of 9166989 in words is "nine million, one hundred sixty-six thousand, nine hundred eighty-nine".