534809 has 4 divisors (see below), whose sum is σ = 583440. Its totient is φ = 486180.

The previous prime is 534799. The next prime is 534811. The reversal of 534809 is 908435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 534809 - 2⁸ = 534553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (534839) 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 in 3 ways as a sum of consecutive naturals, for example, 24299 + ... + 24320.

It is an arithmetic number, because the mean of its divisors is an integer number (145860).

2⁵³⁴⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

534809 is a deficient number, since it is larger than the sum of its proper divisors (48631).

534809 is a wasteful number, since it uses less digits than its factorization.

534809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48630.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 534809 is about 731.3063653490. The cubic root of 534809 is about 81.1707519210.

The spelling of 534809 in words is "five hundred thirty-four thousand, eight hundred nine".