509084 has 6 divisors (see below), whose sum is σ = 890904. Its totient is φ = 254540.

The previous prime is 509071. The next prime is 509087. The reversal of 509084 is 480905.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 509084.

It is not an unprimeable number, because it can be changed into a prime (509087) by changing a digit.

509084 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63632 + ... + 63639.

It is an arithmetic number, because the mean of its divisors is an integer number (148484).

2⁵⁰⁹⁰⁸⁴ is an apocalyptic number.

It is an amenable number.

509084 is a deficient number, since it is larger than the sum of its proper divisors (381820).

509084 is a wasteful number, since it uses less digits than its factorization.

509084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127275 (or 127273 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 509084 is about 713.5012263479. The cubic root of 509084 is about 79.8478357590.

Adding to 509084 its reverse (480905), we get a palindrome (989989).

The spelling of 509084 in words is "five hundred nine thousand, eighty-four".