1688084 has 12 divisors (see below), whose sum is σ = 2978304. Its totient is φ = 837144.

The previous prime is 1688081. The next prime is 1688101. The reversal of 1688084 is 4808861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1688081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154 + ... + 2169.

It is an arithmetic number, because the mean of its divisors is an integer number (248192).

2^1688084 is an apocalyptic number.

It is an amenable number.

1688084 is a deficient number, since it is larger than the sum of its proper divisors (1290220).

1688084 is a wasteful number, since it uses less digits than its factorization.

1688084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454 (or 3452 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 1688084 is about 1299.2628679370. The cubic root of 1688084 is about 119.0688112723.

The spelling of 1688084 in words is "one million, six hundred eighty-eight thousand, eighty-four".