683378 has 8 divisors (see below), whose sum is σ = 1028700. Its totient is φ = 340480.

The previous prime is 683377. The next prime is 683381. The reversal of 683378 is 873386.

It can be written as a sum of positive squares in 2 ways, for example, as 619369 + 64009 = 787^2 + 253^2 .

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

It is not an unprimeable number, because it can be changed into a prime (683377) 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 3 ways as a sum of consecutive naturals, for example, 518 + ... + 1278.

2⁶⁸³³⁷⁸ is an apocalyptic number.

683378 is a deficient number, since it is larger than the sum of its proper divisors (345322).

683378 is a wasteful number, since it uses less digits than its factorization.

683378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its digits is 24192, while the sum is 35.

The square root of 683378 is about 826.6668010753. Note that the first 3 decimals coincide. The cubic root of 683378 is about 88.0819656422.

The spelling of 683378 in words is "six hundred eighty-three thousand, three hundred seventy-eight".