104820 has 24 divisors (see below), whose sum is σ = 293664. Its totient is φ = 27936.

The previous prime is 104803. The next prime is 104827. The reversal of 104820 is 28401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 104820.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 104820.

It is not an unprimeable number, because it can be changed into a prime (104827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (12236).

2¹⁰⁴⁸²⁰ is an apocalyptic number.

104820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104820 is an abundant number, since it is smaller than the sum of its proper divisors (188844).

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

104820 is a wasteful number, since it uses less digits than its factorization.

104820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 104820 is about 323.7591697543. The cubic root of 104820 is about 47.1499661324.

The spelling of 104820 in words is "one hundred four thousand, eight hundred twenty".