852785 has 4 divisors (see below), whose sum is σ = 1023348. Its totient is φ = 682224.

The previous prime is 852769. The next prime is 852793. The reversal of 852785 is 587258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118336 + 734449 = 344^2 + 857^2 .

It is a cyclic number.

It is not a de Polignac number, because 852785 - 2⁴ = 852769 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85274 + ... + 85283.

It is an arithmetic number, because the mean of its divisors is an integer number (255837).

2⁸⁵²⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

852785 is a deficient number, since it is larger than the sum of its proper divisors (170563).

852785 is a wasteful number, since it uses less digits than its factorization.

852785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170562.

The product of its digits is 22400, while the sum is 35.

The square root of 852785 is about 923.4635888870. The cubic root of 852785 is about 94.8301674836.

The spelling of 852785 in words is "eight hundred fifty-two thousand, seven hundred eighty-five".