1685093 has 2 divisors, whose sum is σ = 1685094. Its totient is φ = 1685092.

The previous prime is 1685087. The next prime is 1685107. The reversal of 1685093 is 3905861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1684804 + 289 = 1298^2 + 17^2 .

It is an emirp because it is prime and its reverse (3905861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1685093 - 2⁴ = 1685077 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1645093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842546 + 842547.

It is an arithmetic number, because the mean of its divisors is an integer number (842547).

2^1685093 is an apocalyptic number.

It is an amenable number.

1685093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1685093 is an equidigital number, since it uses as much as digits as its factorization.

1685093 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 1685093 is about 1298.1113203420. Note that the first 3 decimals coincide. The cubic root of 1685093 is about 118.9984464171.

The spelling of 1685093 in words is "one million, six hundred eighty-five thousand, ninety-three".