509087 has 2 divisors, whose sum is σ = 509088. Its totient is φ = 509086.

The previous prime is 509071. The next prime is 509101. The reversal of 509087 is 780905.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 509087 - 2⁴ = 509071 is a prime.

It is a Chen prime.

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 509087.

It is not a weakly prime, because it can be changed into another prime (509027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254543 + 254544.

It is an arithmetic number, because the mean of its divisors is an integer number (254544).

2⁵⁰⁹⁰⁸⁷ is an apocalyptic number.

509087 is a deficient number, since it is larger than the sum of its proper divisors (1).

509087 is an equidigital number, since it uses as much as digits as its factorization.

509087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 509087 is about 713.5033286538. The cubic root of 509087 is about 79.8479926048.

The spelling of 509087 in words is "five hundred nine thousand, eighty-seven".