488649987 has 12 divisors (see below), whose sum is σ = 806660400. Its totient is φ = 279228528.

The previous prime is 488649949. The next prime is 488649991. The reversal of 488649987 is 789946884.

488649987 is a `hidden beast` number, since 488 + 64 + 9 + 98 + 7 = 666.

It is not a de Polignac number, because 488649987 - 2¹⁶ = 488584451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 7756349 = 488649987 / (4 + 8 + 8 + 6 + 4 + 9 + 9 + 8 + 7).

It is not an unprimeable number, because it can be changed into a prime (488649937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3878112 + ... + 3878237.

It is an arithmetic number, because the mean of its divisors is an integer number (67221700).

Almost surely, 2^488649987 is an apocalyptic number.

488649987 is a deficient number, since it is larger than the sum of its proper divisors (318010413).

488649987 is a wasteful number, since it uses less digits than its factorization.

488649987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7756362 (or 7756359 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The square root of 488649987 is about 22105.4289033260. The cubic root of 488649987 is about 787.6488268984.

The spelling of 488649987 in words is "four hundred eighty-eight million, six hundred forty-nine thousand, nine hundred eighty-seven".