535309 has 4 divisors (see below), whose sum is σ = 542716. Its totient is φ = 527904.

The previous prime is 535303. The next prime is 535319. The reversal of 535309 is 903535.

535309 = 47² + 48² + ... + 119².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108900 + 426409 = 330^2 + 653^2 .

It is a cyclic number.

It is not a de Polignac number, because 535309 - 2⁷ = 535181 is a prime.

It is a d-powerful number, because it can be written as 5 + 3⁶ + 3¹² + 5⁵ + 0 + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535303) 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, 3594 + ... + 3739.

It is an arithmetic number, because the mean of its divisors is an integer number (135679).

2⁵³⁵³⁰⁹ is an apocalyptic number.

It is an amenable number.

535309 is a deficient number, since it is larger than the sum of its proper divisors (7407).

535309 is an equidigital number, since it uses as much as digits as its factorization.

535309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7406.

The product of its (nonzero) digits is 2025, while the sum is 25.

The square root of 535309 is about 731.6481394769. The cubic root of 535309 is about 81.1960399114.

The spelling of 535309 in words is "five hundred thirty-five thousand, three hundred nine".