852804 has 18 divisors (see below), whose sum is σ = 2155790. Its totient is φ = 284256.

The previous prime is 852799. The next prime is 852809. The reversal of 852804 is 408258.

It is an interprime number because it is at equal distance from previous prime (852799) and next prime (852809).

It can be written as a sum of positive squares in only one way, i.e., 492804 + 360000 = 702^2 + 600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (852809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11809 + ... + 11880.

2⁸⁵²⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

852804 is an abundant number, since it is smaller than the sum of its proper divisors (1302986).

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

852804 is a wasteful number, since it uses less digits than its factorization.

852804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23699 (or 23694 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 852804 is about 923.4738761871. The cubic root of 852804 is about 94.8308717486.

The spelling of 852804 in words is "eight hundred fifty-two thousand, eight hundred four".