685327 has 4 divisors (see below), whose sum is σ = 687960. Its totient is φ = 682696.

The previous prime is 685319. The next prime is 685337. The reversal of 685327 is 723586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 723586 = 2 ⋅361793.

It is a cyclic number.

It is not a de Polignac number, because 685327 - 2³ = 685319 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 6³ + 8⁵ + 3¹² + 5⁵ + 2⁷ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877 + ... + 1462.

It is an arithmetic number, because the mean of its divisors is an integer number (171990).

2⁶⁸⁵³²⁷ is an apocalyptic number.

685327 is a deficient number, since it is larger than the sum of its proper divisors (2633).

685327 is a wasteful number, since it uses less digits than its factorization.

685327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632.

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

The square root of 685327 is about 827.8447922165. The cubic root of 685327 is about 88.1656230061.

The spelling of 685327 in words is "six hundred eighty-five thousand, three hundred twenty-seven".