803820 has 24 divisors (see below), whose sum is σ = 2250864. Its totient is φ = 214336.

The previous prime is 803819. The next prime is 803849. The reversal of 803820 is 28308.

803820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×803820² = 1292253184800, which contains 22 as substring.

It is a nialpdrome in base 7.

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, 6639 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (93786).

2⁸⁰³⁸²⁰ is an apocalyptic number.

It is an amenable number.

803820 is an abundant number, since it is smaller than the sum of its proper divisors (1447044).

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

803820 is a wasteful number, since it uses less digits than its factorization.

803820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13409 (or 13407 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 803820 is about 896.5600927991. The cubic root of 803820 is about 92.9792993584.

The spelling of 803820 in words is "eight hundred three thousand, eight hundred twenty".