685773 has 16 divisors (see below), whose sum is σ = 1108800. Its totient is φ = 415440.

The previous prime is 685759. The next prime is 685781. The reversal of 685773 is 377586.

It is not a de Polignac number, because 685773 - 2¹² = 681677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (69300).

2⁶⁸⁵⁷⁷³ is an apocalyptic number.

It is an amenable number.

685773 is a deficient number, since it is larger than the sum of its proper divisors (423027).

685773 is a wasteful number, since it uses less digits than its factorization.

685773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2323 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 685773 is about 828.1141225701. The cubic root of 685773 is about 88.1847444576.

The spelling of 685773 in words is "six hundred eighty-five thousand, seven hundred seventy-three".