820596 has 24 divisors (see below), whose sum is σ = 2188480. Its totient is φ = 234432.

The previous prime is 820577. The next prime is 820597. The reversal of 820596 is 695028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820597) by changing a digit.

820596 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4801 + ... + 4968.

2⁸²⁰⁵⁹⁶ is an apocalyptic number.

It is an amenable number.

820596 is an abundant number, since it is smaller than the sum of its proper divisors (1367884).

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

820596 is a wasteful number, since it uses less digits than its factorization.

820596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9783 (or 9781 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 820596 is about 905.8675399858. The cubic root of 820596 is about 93.6216875744.

The spelling of 820596 in words is "eight hundred twenty thousand, five hundred ninety-six".