1683838 has 8 divisors (see below), whose sum is σ = 2720088. Its totient is φ = 777144.

The previous prime is 1683817. The next prime is 1683839. The reversal of 1683838 is 8383861.

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

It is a junction number, because it is equal to n+sod(n) for n = 1683797 and 1683806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683839) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32356 + ... + 32407.

It is an arithmetic number, because the mean of its divisors is an integer number (340011).

2^1683838 is an apocalyptic number.

1683838 is a deficient number, since it is larger than the sum of its proper divisors (1036250).

1683838 is a wasteful number, since it uses less digits than its factorization.

1683838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64778.

The product of its digits is 27648, while the sum is 37.

The square root of 1683838 is about 1297.6278357064. The cubic root of 1683838 is about 118.9688970805.

The spelling of 1683838 in words is "one million, six hundred eighty-three thousand, eight hundred thirty-eight".