930820 has 24 divisors (see below), whose sum is σ = 2132928. Its totient is φ = 338400.

The previous prime is 930817. The next prime is 930827. The reversal of 930820 is 28039.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 930791 and 930800.

It is not an unprimeable number, because it can be changed into a prime (930827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1896 + ... + 2335.

It is an arithmetic number, because the mean of its divisors is an integer number (88872).

2⁹³⁰⁸²⁰ is an apocalyptic number.

It is an amenable number.

930820 is an abundant number, since it is smaller than the sum of its proper divisors (1202108).

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

930820 is a wasteful number, since it uses less digits than its factorization.

930820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 930820 is about 964.7901326195. The cubic root of 930820 is about 97.6386805833.

Adding to 930820 its reverse (28039), we get a palindrome (958859).

The spelling of 930820 in words is "nine hundred thirty thousand, eight hundred twenty".