487869570 has 72 divisors (see below), whose sum is σ = 1347537204. Its totient is φ = 122439168.

The previous prime is 487869559. The next prime is 487869623. The reversal of 487869570 is 75968784.

487869570 is a `hidden beast` number, since 4 + 8 + 7 + 8 + 69 + 570 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 371294361 + 116575209 = 19269^2 + 10797^2 .

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 16632 + ... + 35388.

Almost surely, 2^487869570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487869570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673768602).

487869570 is an abundant number, since it is smaller than the sum of its proper divisors (859667634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487869570 is a wasteful number, since it uses less digits than its factorization.

487869570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18804 (or 18784 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 487869570 is about 22087.7696927508. The cubic root of 487869570 is about 787.2292886591.

The spelling of 487869570 in words is "four hundred eighty-seven million, eight hundred sixty-nine thousand, five hundred seventy".