685341 has 10 divisors (see below), whose sum is σ = 1023902. Its totient is φ = 456840.

The previous prime is 685339. The next prime is 685361. The reversal of 685341 is 143586.

It can be written as a sum of positive squares in only one way, i.e., 656100 + 29241 = 810^2 + 171^2 .

It is not a de Polignac number, because 685341 - 2¹ = 685339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685301) 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 9 ways as a sum of consecutive naturals, for example, 4150 + ... + 4311.

2⁶⁸⁵³⁴¹ is an apocalyptic number.

It is an amenable number.

685341 is a deficient number, since it is larger than the sum of its proper divisors (338561).

685341 is an equidigital number, since it uses as much as digits as its factorization.

685341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473 (or 8464 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 685341 is about 827.8532478646. The cubic root of 685341 is about 88.1662233571.

The spelling of 685341 in words is "six hundred eighty-five thousand, three hundred forty-one".