1683320 has 16 divisors (see below), whose sum is σ = 3787560. Its totient is φ = 673312.

The previous prime is 1683317. The next prime is 1683359. The reversal of 1683320 is 233861.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 21002 + ... + 21081.

2^1683320 is an apocalyptic number.

1683320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1683320 is an abundant number, since it is smaller than the sum of its proper divisors (2104240).

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

1683320 is a wasteful number, since it uses less digits than its factorization.

1683320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42094 (or 42090 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1683320 is about 1297.4282253751. The cubic root of 1683320 is about 118.9566963405.

The spelling of 1683320 in words is "one million, six hundred eighty-three thousand, three hundred twenty".