487808791 has 2 divisors, whose sum is σ = 487808792. Its totient is φ = 487808790.

The previous prime is 487808779. The next prime is 487808833. The reversal of 487808791 is 197808784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 487808791 - 2⁷ = 487808663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487808731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243904395 + 243904396.

It is an arithmetic number, because the mean of its divisors is an integer number (243904396).

Almost surely, 2^487808791 is an apocalyptic number.

487808791 is a deficient number, since it is larger than the sum of its proper divisors (1).

487808791 is an equidigital number, since it uses as much as digits as its factorization.

487808791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 52.

The square root of 487808791 is about 22086.3937979925. The cubic root of 487808791 is about 787.1965961807.

The spelling of 487808791 in words is "four hundred eighty-seven million, eight hundred eight thousand, seven hundred ninety-one".