1680593 has 2 divisors, whose sum is σ = 1680594. Its totient is φ = 1680592.

The previous prime is 1680589. The next prime is 1680617. The reversal of 1680593 is 3950861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227664 + 452929 = 1108^2 + 673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1680593 - 2² = 1680589 is a prime.

It is not a weakly prime, because it can be changed into another prime (1680583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840296 + 840297.

It is an arithmetic number, because the mean of its divisors is an integer number (840297).

2^1680593 is an apocalyptic number.

It is an amenable number.

1680593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680593 is an equidigital number, since it uses as much as digits as its factorization.

1680593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1680593 is about 1296.3768742152. The cubic root of 1680593 is about 118.8924244961.

The spelling of 1680593 in words is "one million, six hundred eighty thousand, five hundred ninety-three".