683438 has 8 divisors (see below), whose sum is σ = 1171632. Its totient is φ = 292896.

The previous prime is 683437. The next prime is 683447. The reversal of 683438 is 834386.

Added to its reverse (834386) it gives a square (1517824 = 1232²).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683437) 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, 24395 + ... + 24422.

It is an arithmetic number, because the mean of its divisors is an integer number (146454).

2⁶⁸³⁴³⁸ is an apocalyptic number.

683438 is a deficient number, since it is larger than the sum of its proper divisors (488194).

683438 is a wasteful number, since it uses less digits than its factorization.

683438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48826.

The product of its digits is 13824, while the sum is 32.

The square root of 683438 is about 826.7030905954. The cubic root of 683438 is about 88.0845434070.

Adding to 683438 its reverse (834386), we get a square (1517824 = 1232²).

The spelling of 683438 in words is "six hundred eighty-three thousand, four hundred thirty-eight".