1689382 has 8 divisors (see below), whose sum is σ = 2564856. Its totient is φ = 834432.

The previous prime is 1689379. The next prime is 1689397. The reversal of 1689382 is 2839861.

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

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4923 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (320607).

2^1689382 is an apocalyptic number.

1689382 is a deficient number, since it is larger than the sum of its proper divisors (875474).

1689382 is a wasteful number, since it uses less digits than its factorization.

1689382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262.

The product of its digits is 20736, while the sum is 37.

The square root of 1689382 is about 1299.7622859585. The cubic root of 1689382 is about 119.0993215474.

It can be divided in two parts, 16 and 89382, that added together give a palindrome (89398).

The spelling of 1689382 in words is "one million, six hundred eighty-nine thousand, three hundred eighty-two".