534309 has 4 divisors (see below), whose sum is σ = 712416. Its totient is φ = 356204.

The previous prime is 534307. The next prime is 534311. The reversal of 534309 is 903435.

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 an interprime number because it is at equal distance from previous prime (534307) and next prime (534311).

It is a cyclic number.

It is not a de Polignac number, because 534309 - 2¹ = 534307 is a prime.

It is a super-2 number, since 2×534309² = 570972214962, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

534309 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89049 + ... + 89054.

It is an arithmetic number, because the mean of its divisors is an integer number (178104).

2⁵³⁴³⁰⁹ is an apocalyptic number.

It is an amenable number.

534309 is a deficient number, since it is larger than the sum of its proper divisors (178107).

534309 is a wasteful number, since it uses less digits than its factorization.

534309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178106.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 534309 is about 730.9644314192. The cubic root of 534309 is about 81.1454481643.

The spelling of 534309 in words is "five hundred thirty-four thousand, three hundred nine".