820383 has 8 divisors (see below), whose sum is σ = 1101696. Its totient is φ = 543000.

The previous prime is 820367. The next prime is 820399. The reversal of 820383 is 383028.

820383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (820367) and next prime (820399).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 820383 - 2⁴ = 820367 is a prime.

It is a super-3 number, since 3×820383³ = 1656422845533365661, which contains 333 as substring.

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 820383.

It is not an unprimeable number, because it can be changed into a prime (820333) 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, 453 + ... + 1358.

It is an arithmetic number, because the mean of its divisors is an integer number (137712).

2⁸²⁰³⁸³ is an apocalyptic number.

820383 is a deficient number, since it is larger than the sum of its proper divisors (281313).

820383 is a wasteful number, since it uses less digits than its factorization.

820383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 820383 is about 905.7499654982. The cubic root of 820383 is about 93.6135864930.

The spelling of 820383 in words is "eight hundred twenty thousand, three hundred eighty-three".