673285 has 12 divisors (see below), whose sum is σ = 865188. Its totient is φ = 501248.

The previous prime is 673273. The next prime is 673291. The reversal of 673285 is 582376.

It can be written as a sum of positive squares in 6 ways, for example, as 42849 + 630436 = 207^2 + 794^2 .

It is not a de Polignac number, because 673285 - 2⁷ = 673157 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 7⁴ + 2⁸ + 3 + 8² + 5⁸ .

It is a Duffinian number.

673285 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7521 + ... + 7609.

It is an arithmetic number, because the mean of its divisors is an integer number (72099).

2⁶⁷³²⁸⁵ is an apocalyptic number.

It is an amenable number.

673285 is a deficient number, since it is larger than the sum of its proper divisors (191903).

673285 is an equidigital number, since it uses as much as digits as its factorization.

673285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 111 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 673285 is about 820.5394566991. The cubic root of 673285 is about 87.6461774288.

Subtracting from 673285 its reverse (582376), we obtain a palindrome (90909).

The spelling of 673285 in words is "six hundred seventy-three thousand, two hundred eighty-five".