820046 has 16 divisors (see below), whose sum is σ = 1321920. Its totient is φ = 380160.

The previous prime is 820037. The next prime is 820051. The reversal of 820046 is 640028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2891 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (82620).

2⁸²⁰⁰⁴⁶ is an apocalyptic number.

820046 is a deficient number, since it is larger than the sum of its proper divisors (501874).

820046 is a wasteful number, since it uses less digits than its factorization.

820046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 820046 is about 905.5639127085. The cubic root of 820046 is about 93.6007664242.

The spelling of 820046 in words is "eight hundred twenty thousand, forty-six".