487658889 has 27 divisors (see below), whose sum is σ = 750000693. Its totient is φ = 305275392.

The previous prime is 487658881. The next prime is 487658909. The reversal of 487658889 is 988856784.

The square root of 487658889 is 22083.

It is a perfect power (a square), and thus also a powerful number.

487658889 is a `hidden beast` number, since 48 + 7 + 6 + 588 + 8 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10673289 + 476985600 = 3267^2 + 21840^2 .

It is not a de Polignac number, because 487658889 - 2³ = 487658881 is a prime.

It is a super-2 number, since 2×487658889² = 475622384041428642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (487658881) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1126017 + ... + 1126449.

Almost surely, 2^487658889 is an apocalyptic number.

487658889 is the 22083-rd square number.

487658889 is the 11042-nd centered octagonal number.

It is an amenable number.

487658889 is a deficient number, since it is larger than the sum of its proper divisors (262341804).

487658889 is an equidigital number, since it uses as much as digits as its factorization.

487658889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 453 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The cubic root of 487658889 is about 787.1159536314.

The spelling of 487658889 in words is "four hundred eighty-seven million, six hundred fifty-eight thousand, eight hundred eighty-nine".