685101 has 8 divisors (see below), whose sum is σ = 953280. Its totient is φ = 436832.

The previous prime is 685099. The next prime is 685103. The reversal of 685101 is 101586.

685101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (685099) and next prime (685103).

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 685101 - 2¹ = 685099 is a prime.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685103) 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, 4896 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (119160).

2⁶⁸⁵¹⁰¹ is an apocalyptic number.

It is an amenable number.

685101 is a deficient number, since it is larger than the sum of its proper divisors (268179).

685101 is a wasteful number, since it uses less digits than its factorization.

685101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9955.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 685101 is about 827.7082819448. The cubic root of 685101 is about 88.1559304937.

Adding to 685101 its reverse (101586), we get a palindrome (786687).

The spelling of 685101 in words is "six hundred eighty-five thousand, one hundred one".