820539703 has 2 divisors, whose sum is σ = 820539704. Its totient is φ = 820539702.

The previous prime is 820539691. The next prime is 820539721. The reversal of 820539703 is 307935028.

820539703 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 820539703 - 2²⁵ = 786985271 is a prime.

It is equal to p_42147793 and since 820539703 and 42147793 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (820539773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410269851 + 410269852.

It is an arithmetic number, because the mean of its divisors is an integer number (410269852).

Almost surely, 2^820539703 is an apocalyptic number.

820539703 is a deficient number, since it is larger than the sum of its proper divisors (1).

820539703 is an equidigital number, since it uses as much as digits as its factorization.

820539703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 820539703 is about 28645.0641996139. The cubic root of 820539703 is about 936.1954655304.

The spelling of 820539703 in words is "eight hundred twenty million, five hundred thirty-nine thousand, seven hundred three".