486509 has 2 divisors, whose sum is σ = 486510. Its totient is φ = 486508.

The previous prime is 486503. The next prime is 486511. The reversal of 486509 is 905684.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422500 + 64009 = 650^2 + 253^2 .

It is a cyclic number.

It is not a de Polignac number, because 486509 - 2¹² = 482413 is a prime.

Together with 486511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (486503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243254 + 243255.

It is an arithmetic number, because the mean of its divisors is an integer number (243255).

2⁴⁸⁶⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

486509 is a deficient number, since it is larger than the sum of its proper divisors (1).

486509 is an equidigital number, since it uses as much as digits as its factorization.

486509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 486509 is about 697.5019713234. The cubic root of 486509 is about 78.6496799321.

The spelling of 486509 in words is "four hundred eighty-six thousand, five hundred nine".