1688034 has 8 divisors (see below), whose sum is σ = 3376080. Its totient is φ = 562676.

The previous prime is 1687999. The next prime is 1688041. The reversal of 1688034 is 4308861.

It is a happy number.

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

1688034 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1687992 and 1688010.

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, 140664 + ... + 140675.

It is an arithmetic number, because the mean of its divisors is an integer number (422010).

2^1688034 is an apocalyptic number.

1688034 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.

1688034 is a wasteful number, since it uses less digits than its factorization.

1688034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281344.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1688034 is about 1299.2436261148. The cubic root of 1688034 is about 119.0676356793.

The spelling of 1688034 in words is "one million, six hundred eighty-eight thousand, thirty-four".