688341 has 8 divisors (see below), whose sum is σ = 923200. Its totient is φ = 456192.

The previous prime is 688339. The next prime is 688357. The reversal of 688341 is 143886.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 688341 - 2¹ = 688339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 688299 and 688308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688741) 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, 21 + ... + 1173.

It is an arithmetic number, because the mean of its divisors is an integer number (115400).

2⁶⁸⁸³⁴¹ is an apocalyptic number.

It is an amenable number.

688341 is a deficient number, since it is larger than the sum of its proper divisors (234859).

688341 is a wasteful number, since it uses less digits than its factorization.

688341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its digits is 4608, while the sum is 30.

The square root of 688341 is about 829.6631846719. The cubic root of 688341 is about 88.2946818756.

The spelling of 688341 in words is "six hundred eighty-eight thousand, three hundred forty-one".