820938 has 16 divisors (see below), whose sum is σ = 1669536. Its totient is φ = 269040.

The previous prime is 820927. The next prime is 820957. The reversal of 820938 is 839028.

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, 756 + ... + 1487.

It is an arithmetic number, because the mean of its divisors is an integer number (104346).

2⁸²⁰⁹³⁸ is an apocalyptic number.

820938 is an abundant number, since it is smaller than the sum of its proper divisors (848598).

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

820938 is a wasteful number, since it uses less digits than its factorization.

820938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 820938 is about 906.0562896421. The cubic root of 820938 is about 93.6346920126.

The spelling of 820938 in words is "eight hundred twenty thousand, nine hundred thirty-eight".