1700680 has 64 divisors (see below), whose sum is σ = 4218480. Its totient is φ = 614400.

The previous prime is 1700669. The next prime is 1700683. The reversal of 1700680 is 860071.

It can be written as a sum of positive squares in 8 ways, for example, as 128164 + 1572516 = 358^2 + 1254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1700683) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27850 + ... + 27910.

2^1700680 is an apocalyptic number.

1700680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1700680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2109240).

1700680 is an abundant number, since it is smaller than the sum of its proper divisors (2517800).

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

1700680 is a wasteful number, since it uses less digits than its factorization.

1700680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1700680 is about 1304.1012230651. The cubic root of 1700680 is about 119.3642301807.

The spelling of 1700680 in words is "one million, seven hundred thousand, six hundred eighty".