683428 has 6 divisors (see below), whose sum is σ = 1196006. Its totient is φ = 341712.

The previous prime is 683407. The next prime is 683437. The reversal of 683428 is 824386.

It is a happy number.

683428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 675684 + 7744 = 822^2 + 88^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 683428.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85425 + ... + 85432.

2⁶⁸³⁴²⁸ is an apocalyptic number.

It is an amenable number.

683428 is a deficient number, since it is larger than the sum of its proper divisors (512578).

683428 is a wasteful number, since it uses less digits than its factorization.

683428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170861 (or 170859 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 683428 is about 826.6970424527. The cubic root of 683428 is about 88.0841137901.

It can be divided in two parts, 683 and 428, that added together give a palindrome (1111).

The spelling of 683428 in words is "six hundred eighty-three thousand, four hundred twenty-eight".