4320559 has 2 divisors, whose sum is σ = 4320560. Its totient is φ = 4320558.

The previous prime is 4320529. The next prime is 4320571. The reversal of 4320559 is 9550234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4320559 - 2¹¹ = 4318511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4320509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160279 + 2160280.

It is an arithmetic number, because the mean of its divisors is an integer number (2160280).

Almost surely, 2^4320559 is an apocalyptic number.

4320559 is a deficient number, since it is larger than the sum of its proper divisors (1).

4320559 is an equidigital number, since it uses as much as digits as its factorization.

4320559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 4320559 is about 2078.5954392329. The cubic root of 4320559 is about 162.8720815050.

It can be divided in two parts, 43205 and 59, that added together give a square (43264 = 208²).

The spelling of 4320559 in words is "four million, three hundred twenty thousand, five hundred fifty-nine".