487899117 has 6 divisors (see below), whose sum is σ = 704743182. Its totient is φ = 325266072.

The previous prime is 487899109. The next prime is 487899121. The reversal of 487899117 is 711998784.

It can be written as a sum of positive squares in only one way, i.e., 418243401 + 69655716 = 20451^2 + 8346^2 .

It is not a de Polignac number, because 487899117 - 2³ = 487899109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487899187) 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 5 ways as a sum of consecutive naturals, for example, 27105498 + ... + 27105515.

It is an arithmetic number, because the mean of its divisors is an integer number (117457197).

Almost surely, 2^487899117 is an apocalyptic number.

It is an amenable number.

487899117 is a deficient number, since it is larger than the sum of its proper divisors (216844065).

487899117 is a wasteful number, since it uses less digits than its factorization.

487899117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54211019 (or 54211016 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 487899117 is about 22088.4385369360. The cubic root of 487899117 is about 787.2451807442.

The spelling of 487899117 in words is "four hundred eighty-seven million, eight hundred ninety-nine thousand, one hundred seventeen".