2173285 has 8 divisors (see below), whose sum is σ = 2635416. Its totient is φ = 1720320.

The previous prime is 2173243. The next prime is 2173307. The reversal of 2173285 is 5823712.

It can be written as a sum of positive squares in 4 ways, for example, as 407044 + 1766241 = 638^2 + 1329^2 .

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

It is not a de Polignac number, because 2173285 - 2⁹ = 2172773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (329427).

2^2173285 is an apocalyptic number.

It is an amenable number.

2173285 is a deficient number, since it is larger than the sum of its proper divisors (462131).

2173285 is an equidigital number, since it uses as much as digits as its factorization.

2173285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583.

The product of its digits is 3360, while the sum is 28.

The square root of 2173285 is about 1474.2065662586. The cubic root of 2173285 is about 129.5305553437.

Adding to 2173285 its reverse (5823712), we get a palindrome (7996997).

The spelling of 2173285 in words is "two million, one hundred seventy-three thousand, two hundred eighty-five".