487811 has 2 divisors, whose sum is σ = 487812. Its totient is φ = 487810.

The previous prime is 487793. The next prime is 487819. The reversal of 487811 is 118784.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487811 is a prime.

It is not a weakly prime, because it can be changed into another prime (487819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243905 + 243906.

It is an arithmetic number, because the mean of its divisors is an integer number (243906).

2⁴⁸⁷⁸¹¹ is an apocalyptic number.

487811 is a deficient number, since it is larger than the sum of its proper divisors (1).

487811 is an equidigital number, since it uses as much as digits as its factorization.

487811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 29.

The square root of 487811 is about 698.4346784059. The cubic root of 487811 is about 78.7197784430.

The spelling of 487811 in words is "four hundred eighty-seven thousand, eight hundred eleven".