487819 has 2 divisors, whose sum is σ = 487820. Its totient is φ = 487818.

The previous prime is 487811. The next prime is 487829. The reversal of 487819 is 918784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 487819 - 2³ = 487811 is a prime.

It is a super-2 number, since 2×487819² = 475934753522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (487811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243909 + 243910.

It is an arithmetic number, because the mean of its divisors is an integer number (243910).

2⁴⁸⁷⁸¹⁹ is an apocalyptic number.

487819 is a deficient number, since it is larger than the sum of its proper divisors (1).

487819 is an equidigital number, since it uses as much as digits as its factorization.

487819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 37.

The square root of 487819 is about 698.4404054749. The cubic root of 487819 is about 78.7202087700.

The spelling of 487819 in words is "four hundred eighty-seven thousand, eight hundred nineteen".