509395 has 4 divisors (see below), whose sum is σ = 611280. Its totient is φ = 407512.

The previous prime is 509393. The next prime is 509413. The reversal of 509395 is 593905.

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

It is a cyclic number.

It is not a de Polignac number, because 509395 - 2¹ = 509393 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (509393) 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, 50935 + ... + 50944.

It is an arithmetic number, because the mean of its divisors is an integer number (152820).

2⁵⁰⁹³⁹⁵ is an apocalyptic number.

509395 is a deficient number, since it is larger than the sum of its proper divisors (101885).

509395 is a wasteful number, since it uses less digits than its factorization.

509395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101884.

The product of its (nonzero) digits is 6075, while the sum is 31.

The square root of 509395 is about 713.7191324324. The cubic root of 509395 is about 79.8640921607.

The spelling of 509395 in words is "five hundred nine thousand, three hundred ninety-five".