683705 has 16 divisors (see below), whose sum is σ = 926208. Its totient is φ = 480000.

The previous prime is 683701. The next prime is 683713. The reversal of 683705 is 507386.

It is not a de Polignac number, because 683705 - 2² = 683701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683701) 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, 1505 + ... + 1905.

It is an arithmetic number, because the mean of its divisors is an integer number (57888).

2⁶⁸³⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

683705 is a deficient number, since it is larger than the sum of its proper divisors (242503).

683705 is a wasteful number, since it uses less digits than its factorization.

683705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 683705 is about 826.8645596469. The cubic root of 683705 is about 88.0960126313.

It can be divided in two parts, 68 and 3705, that added together give a palindrome (3773).

The spelling of 683705 in words is "six hundred eighty-three thousand, seven hundred five".