8749173 has 4 divisors (see below), whose sum is σ = 11665568. Its totient is φ = 5832780.

The previous prime is 8749163. The next prime is 8749199. The reversal of 8749173 is 3719478.

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.

It is not a de Polignac number, because 8749173 - 2⁵ = 8749141 is a prime.

It is a Duffinian number.

8749173 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8749133) 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, 1458193 + ... + 1458198.

It is an arithmetic number, because the mean of its divisors is an integer number (2916392).

Almost surely, 2^8749173 is an apocalyptic number.

It is an amenable number.

8749173 is a deficient number, since it is larger than the sum of its proper divisors (2916395).

8749173 is a wasteful number, since it uses less digits than its factorization.

8749173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916394.

The product of its digits is 42336, while the sum is 39.

The square root of 8749173 is about 2957.9000997329. The cubic root of 8749173 is about 206.0577727803.

The spelling of 8749173 in words is "eight million, seven hundred forty-nine thousand, one hundred seventy-three".