533809 has 2 divisors, whose sum is σ = 533810. Its totient is φ = 533808.

The previous prime is 533801. The next prime is 533821. The reversal of 533809 is 908335.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278784 + 255025 = 528^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 533809 - 2³ = 533801 is a prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (533801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266904 + 266905.

It is an arithmetic number, because the mean of its divisors is an integer number (266905).

2⁵³³⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

533809 is a deficient number, since it is larger than the sum of its proper divisors (1).

533809 is an equidigital number, since it uses as much as digits as its factorization.

533809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 533809 is about 730.6223374631. The cubic root of 533809 is about 81.1201286166.

The spelling of 533809 in words is "five hundred thirty-three thousand, eight hundred nine".