1706680 has 16 divisors (see below), whose sum is σ = 3840120. Its totient is φ = 682656.

The previous prime is 1706659. The next prime is 1706687. The reversal of 1706680 is 866071.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1706687) 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, 21294 + ... + 21373.

2^1706680 is an apocalyptic number.

1706680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1706680 is an abundant number, since it is smaller than the sum of its proper divisors (2133440).

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

1706680 is a wasteful number, since it uses less digits than its factorization.

1706680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42678 (or 42674 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1706680 is about 1306.3996325780. The cubic root of 1706680 is about 119.5044377827.

The spelling of 1706680 in words is "one million, seven hundred six thousand, six hundred eighty".