1089173 has 8 divisors (see below), whose sum is σ = 1169280. Its totient is φ = 1010880.

The previous prime is 1089161. The next prime is 1089191. The reversal of 1089173 is 3719801.

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

It is a cyclic number.

It is not a de Polignac number, because 1089173 - 2⁸ = 1088917 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 (1089103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (146160).

2^1089173 is an apocalyptic number.

It is an amenable number.

1089173 is a deficient number, since it is larger than the sum of its proper divisors (80107).

1089173 is an equidigital number, since it uses as much as digits as its factorization.

1089173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1089173 is about 1043.6345145692. The cubic root of 1089173 is about 102.8882125239. Note that the first 3 decimals are identical.

The spelling of 1089173 in words is "one million, eighty-nine thousand, one hundred seventy-three".