487549791 has 24 divisors (see below), whose sum is σ = 735817056. Its totient is φ = 310495680.

The previous prime is 487549763. The next prime is 487549807. The reversal of 487549791 is 197945784.

487549791 is a `hidden beast` number, since 4 + 8 + 7 + 549 + 7 + 91 = 666.

It is not a de Polignac number, because 487549791 - 2¹³ = 487541599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487549691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299961 + ... + 301581.

It is an arithmetic number, because the mean of its divisors is an integer number (30659044).

Almost surely, 2^487549791 is an apocalyptic number.

487549791 is a deficient number, since it is larger than the sum of its proper divisors (248267265).

487549791 is a wasteful number, since it uses less digits than its factorization.

487549791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103 (or 3100 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 487549791 is about 22080.5296811467. The cubic root of 487549791 is about 787.0572519564.

The spelling of 487549791 in words is "four hundred eighty-seven million, five hundred forty-nine thousand, seven hundred ninety-one".