683399 has 8 divisors (see below), whose sum is σ = 730752. Its totient is φ = 637560.

The previous prime is 683381. The next prime is 683401. The reversal of 683399 is 993386.

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 683399 - 2⁸ = 683143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 1334.

It is an arithmetic number, because the mean of its divisors is an integer number (91344).

2⁶⁸³³⁹⁹ is an apocalyptic number.

683399 is a deficient number, since it is larger than the sum of its proper divisors (47353).

683399 is a wasteful number, since it uses less digits than its factorization.

683399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757.

The product of its digits is 34992, while the sum is 38.

The square root of 683399 is about 826.6795025885. The cubic root of 683399 is about 88.0828678771.

It can be divided in two parts, 68 and 3399, that multiplied together give a palindrome (231132).

The spelling of 683399 in words is "six hundred eighty-three thousand, three hundred ninety-nine".