9166889 has 4 divisors (see below), whose sum is σ = 9322320. Its totient is φ = 9011460.

The previous prime is 9166879. The next prime is 9166891. The reversal of 9166889 is 9886619.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9886619 = 23 ⋅429853.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9166889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9166819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77627 + ... + 77744.

It is an arithmetic number, because the mean of its divisors is an integer number (2330580).

Almost surely, 2^9166889 is an apocalyptic number.

It is an amenable number.

9166889 is a deficient number, since it is larger than the sum of its proper divisors (155431).

9166889 is a wasteful number, since it uses less digits than its factorization.

9166889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155430.

The product of its digits is 186624, while the sum is 47.

The square root of 9166889 is about 3027.6870710164. The cubic root of 9166889 is about 209.2862312941.

The spelling of 9166889 in words is "nine million, one hundred sixty-six thousand, eight hundred eighty-nine".