685701 has 12 divisors (see below), whose sum is σ = 1007500. Its totient is φ = 449280.

The previous prime is 685697. The next prime is 685717. The reversal of 685701 is 107586.

685701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 123201 + 562500 = 351^2 + 750^2 .

It is not a de Polignac number, because 685701 - 2² = 685697 is a prime.

It is a super-2 number, since 2×685701² = 940371722802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76 + ... + 1173.

2⁶⁸⁵⁷⁰¹ is an apocalyptic number.

685701 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

685701 is a deficient number, since it is larger than the sum of its proper divisors (321799).

685701 is a wasteful number, since it uses less digits than its factorization.

685701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 685701 is about 828.0706491598. The cubic root of 685701 is about 88.1816581478.

The spelling of 685701 in words is "six hundred eighty-five thousand, seven hundred one".