1689234 has 8 divisors (see below), whose sum is σ = 3378480. Its totient is φ = 563076.

The previous prime is 1689217. The next prime is 1689253. The reversal of 1689234 is 4329861.

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

1689234 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1689195 and 1689204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140764 + ... + 140775.

It is an arithmetic number, because the mean of its divisors is an integer number (422310).

2^1689234 is an apocalyptic number.

1689234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1689234 is a wasteful number, since it uses less digits than its factorization.

1689234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281544.

The product of its digits is 10368, while the sum is 33.

The square root of 1689234 is about 1299.7053512239. The cubic root of 1689234 is about 119.0958435074.

The spelling of 1689234 in words is "one million, six hundred eighty-nine thousand, two hundred thirty-four".