683443 has 4 divisors (see below), whose sum is σ = 707040. Its totient is φ = 659848.

The previous prime is 683437. The next prime is 683447. The reversal of 683443 is 344386.

683443 = 42² + 43² + ... + 128².

683443 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 683443 - 2¹³ = 675251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11755 + ... + 11812.

It is an arithmetic number, because the mean of its divisors is an integer number (176760).

2⁶⁸³⁴⁴³ is an apocalyptic number.

683443 is a deficient number, since it is larger than the sum of its proper divisors (23597).

683443 is a wasteful number, since it uses less digits than its factorization.

683443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23596.

The product of its digits is 6912, while the sum is 28.

The square root of 683443 is about 826.7061146502. The cubic root of 683443 is about 88.0847582140.

The spelling of 683443 in words is "six hundred eighty-three thousand, four hundred forty-three".