487551771 has 32 divisors (see below), whose sum is σ = 827335680. Its totient is φ = 277976448.

The previous prime is 487551737. The next prime is 487551803. The reversal of 487551771 is 177155784.

It is not a de Polignac number, because 487551771 - 2⁷ = 487551643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487551731) 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 in 31 ways as a sum of consecutive naturals, for example, 89395 + ... + 94691.

It is an arithmetic number, because the mean of its divisors is an integer number (25854240).

Almost surely, 2^487551771 is an apocalyptic number.

487551771 is a deficient number, since it is larger than the sum of its proper divisors (339783909).

487551771 is a wasteful number, since it uses less digits than its factorization.

487551771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5800 (or 5794 counting only the distinct ones).

The product of its digits is 274400, while the sum is 45.

The square root of 487551771 is about 22080.5745169821. The cubic root of 487551771 is about 787.0583174006.

The spelling of 487551771 in words is "four hundred eighty-seven million, five hundred fifty-one thousand, seven hundred seventy-one".