685343 has 8 divisors (see below), whose sum is σ = 712368. Its totient is φ = 658944.

The previous prime is 685339. The next prime is 685361. The reversal of 685343 is 343586.

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

It is a cyclic number.

It is not a de Polignac number, because 685343 - 2² = 685339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3455 + ... + 3647.

It is an arithmetic number, because the mean of its divisors is an integer number (89046).

2⁶⁸⁵³⁴³ is an apocalyptic number.

685343 is a deficient number, since it is larger than the sum of its proper divisors (27025).

685343 is a wasteful number, since it uses less digits than its factorization.

685343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its digits is 8640, while the sum is 29.

The square root of 685343 is about 827.8544558073. The cubic root of 685343 is about 88.1663091209.

It can be divided in two parts, 685 and 343, that multiplied together give a triangular number (234955 = T₆₈₅).

The spelling of 685343 in words is "six hundred eighty-five thousand, three hundred forty-three".