487643459 has 2 divisors, whose sum is σ = 487643460. Its totient is φ = 487643458.

The previous prime is 487643449. The next prime is 487643467. The reversal of 487643459 is 954346784.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 487643459 - 2⁸ = 487643203 is a prime.

It is a super-2 number, since 2×487643459² = 475592286210969362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (487643449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243821729 + 243821730.

It is an arithmetic number, because the mean of its divisors is an integer number (243821730).

Almost surely, 2^487643459 is an apocalyptic number.

487643459 is a deficient number, since it is larger than the sum of its proper divisors (1).

487643459 is an equidigital number, since it uses as much as digits as its factorization.

487643459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 50.

The square root of 487643459 is about 22082.6506334724. The cubic root of 487643459 is about 787.1076518399.

The spelling of 487643459 in words is "four hundred eighty-seven million, six hundred forty-three thousand, four hundred fifty-nine".