820852 has 6 divisors (see below), whose sum is σ = 1436498. Its totient is φ = 410424.

The previous prime is 820837. The next prime is 820873. The reversal of 820852 is 258028.

It can be written as a sum of positive squares in only one way, i.e., 820836 + 16 = 906^2 + 4^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102603 + ... + 102610.

2⁸²⁰⁸⁵² is an apocalyptic number.

It is an amenable number.

820852 is a deficient number, since it is larger than the sum of its proper divisors (615646).

820852 is a wasteful number, since it uses less digits than its factorization.

820852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205217 (or 205215 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 820852 is about 906.0088299790. The cubic root of 820852 is about 93.6314222307.

The spelling of 820852 in words is "eight hundred twenty thousand, eight hundred fifty-two".