685201 has 8 divisors (see below), whose sum is σ = 753984. Its totient is φ = 617520.

The previous prime is 685199. The next prime is 685231. The reversal of 685201 is 102586.

It is a happy number.

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 685201 - 2¹ = 685199 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (685231) 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, 1651 + ... + 2023.

It is an arithmetic number, because the mean of its divisors is an integer number (94248).

2⁶⁸⁵²⁰¹ is an apocalyptic number.

It is an amenable number.

685201 is a deficient number, since it is larger than the sum of its proper divisors (68783).

685201 is a wasteful number, since it uses less digits than its factorization.

685201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 685201 is about 827.7686874967. The cubic root of 685201 is about 88.1602194789.

Adding to 685201 its reverse (102586), we get a palindrome (787787).

The spelling of 685201 in words is "six hundred eighty-five thousand, two hundred one".