1705164085 has 4 divisors (see below), whose sum is σ = 2046196908. Its totient is φ = 1364131264.

The previous prime is 1705164059. The next prime is 1705164119. The reversal of 1705164085 is 5804615071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5804615071 = 54013 ⋅107467.

It can be written as a sum of positive squares in 2 ways, for example, as 1032851044 + 672313041 = 32138^2 + 25929^2 .

It is a cyclic number.

It is not a de Polignac number, because 1705164085 - 2¹⁷ = 1705033013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170516404 + ... + 170516413.

It is an arithmetic number, because the mean of its divisors is an integer number (511549227).

Almost surely, 2^1705164085 is an apocalyptic number.

It is an amenable number.

1705164085 is a deficient number, since it is larger than the sum of its proper divisors (341032823).

1705164085 is an equidigital number, since it uses as much as digits as its factorization.

1705164085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341032822.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 1705164085 is about 41293.6324994544. The cubic root of 1705164085 is about 1194.6904504500.

The spelling of 1705164085 in words is "one billion, seven hundred five million, one hundred sixty-four thousand, eighty-five".