683400 has 96 divisors (see below), whose sum is σ = 2276640. Its totient is φ = 168960.

The previous prime is 683381. The next prime is 683401. The reversal of 683400 is 4386.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (683401) by changing a digit.

683400 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10167 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (23715).

2⁶⁸³⁴⁰⁰ is an apocalyptic number.

683400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 683400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138320).

683400 is an abundant number, since it is smaller than the sum of its proper divisors (1593240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

683400 is a wasteful number, since it uses less digits than its factorization.

683400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 683400 is about 826.6801074176. The cubic root of 683400 is about 88.0829108402.

Adding to 683400 its reverse (4386), we get a palindrome (687786).

The spelling of 683400 in words is "six hundred eighty-three thousand, four hundred".