820284203 has 2 divisors, whose sum is σ = 820284204. Its totient is φ = 820284202.

The previous prime is 820284193. The next prime is 820284239. The reversal of 820284203 is 302482028.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-820284203 is a prime.

It is not a weakly prime, because it can be changed into another prime (820284503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410142101 + 410142102.

It is an arithmetic number, because the mean of its divisors is an integer number (410142102).

Almost surely, 2^820284203 is an apocalyptic number.

820284203 is a deficient number, since it is larger than the sum of its proper divisors (1).

820284203 is an equidigital number, since it uses as much as digits as its factorization.

820284203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 820284203 is about 28640.6040962826. The cubic root of 820284203 is about 936.0982844628.

The spelling of 820284203 in words is "eight hundred twenty million, two hundred eighty-four thousand, two hundred three".