820052 has 12 divisors (see below), whose sum is σ = 1441440. Its totient is φ = 408216.

The previous prime is 820051. The next prime is 820067. The reversal of 820052 is 250028.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 820052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523 + ... + 1989.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

2⁸²⁰⁰⁵² is an apocalyptic number.

It is an amenable number.

820052 is a deficient number, since it is larger than the sum of its proper divisors (621388).

820052 is a wasteful number, since it uses less digits than its factorization.

820052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 820052 is about 905.5672255553. The cubic root of 820052 is about 93.6009947054.

The spelling of 820052 in words is "eight hundred twenty thousand, fifty-two".