1683426 has 16 divisors (see below), whose sum is σ = 3458304. Its totient is φ = 545904.

The previous prime is 1683403. The next prime is 1683433. The reversal of 1683426 is 6243861.

It is a d-powerful number, because it can be written as 1 + 6³ + 8³ + 3² + 4⁵ + 2¹¹ + 6⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 1683393 and 1683402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3570 + ... + 4013.

It is an arithmetic number, because the mean of its divisors is an integer number (216144).

2^1683426 is an apocalyptic number.

1683426 is an abundant number, since it is smaller than the sum of its proper divisors (1774878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1683426 is a wasteful number, since it uses less digits than its factorization.

1683426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625.

The product of its digits is 6912, while the sum is 30.

The square root of 1683426 is about 1297.4690747760. The cubic root of 1683426 is about 118.9591932207.

The spelling of 1683426 in words is "one million, six hundred eighty-three thousand, four hundred twenty-six".