923820 has 48 divisors (see below), whose sum is σ = 2630880. Its totient is φ = 242176.

The previous prime is 923809. The next prime is 923833. The reversal of 923820 is 28329.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5254 + ... + 5426.

It is an arithmetic number, because the mean of its divisors is an integer number (54810).

2⁹²³⁸²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 923820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1315440).

923820 is an abundant number, since it is smaller than the sum of its proper divisors (1707060).

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

923820 is a wasteful number, since it uses less digits than its factorization.

923820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 923820 is about 961.1555545280. The cubic root of 923820 is about 97.3933086715.

The spelling of 923820 in words is "nine hundred twenty-three thousand, eight hundred twenty".