1683028 has 6 divisors (see below), whose sum is σ = 2945306. Its totient is φ = 841512.

The previous prime is 1683013. The next prime is 1683029. The reversal of 1683028 is 8203861.

It can be written as a sum of positive squares in only one way, i.e., 887364 + 795664 = 942^2 + 892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1682987 and 1683005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683029) 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 as a sum of consecutive naturals, namely, 210375 + ... + 210382.

2^1683028 is an apocalyptic number.

It is an amenable number.

1683028 is a deficient number, since it is larger than the sum of its proper divisors (1262278).

1683028 is a wasteful number, since it uses less digits than its factorization.

1683028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420761 (or 420759 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1683028 is about 1297.3156901849. The cubic root of 1683028 is about 118.9498176000.

Adding to 1683028 its reverse (8203861), we get a palindrome (9886889).

The spelling of 1683028 in words is "one million, six hundred eighty-three thousand, twenty-eight".