683838 has 12 divisors (see below), whose sum is σ = 1481688. Its totient is φ = 227940.

The previous prime is 683833. The next prime is 683843. The reversal of 683838 is 838386.

It is an interprime number because it is at equal distance from previous prime (683833) and next prime (683843).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18978 + ... + 19013.

It is an arithmetic number, because the mean of its divisors is an integer number (123474).

2⁶⁸³⁸³⁸ is an apocalyptic number.

683838 is an abundant number, since it is smaller than the sum of its proper divisors (797850).

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

683838 is a wasteful number, since it uses less digits than its factorization.

683838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37999 (or 37996 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 683838 is about 826.9449800319. The cubic root of 683838 is about 88.1017246514.

It can be divided in two parts, 683 and 838, that added together give a square (1521 = 39²).

The spelling of 683838 in words is "six hundred eighty-three thousand, eight hundred thirty-eight".