487881081 has 12 divisors (see below), whose sum is σ = 706108260. Its totient is φ = 324612000.

The previous prime is 487881071. The next prime is 487881101. The reversal of 487881081 is 180188784.

487881081 is a `hidden beast` number, since 487 + 88 + 10 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 453306681 + 34574400 = 21291^2 + 5880^2 .

It is not a de Polignac number, because 487881081 - 2⁵ = 487881049 is a prime.

It is a super-2 number, since 2×487881081² = 476055898395457122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (487881071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48670 + ... + 57831.

It is an arithmetic number, because the mean of its divisors is an integer number (58842355).

Almost surely, 2^487881081 is an apocalyptic number.

It is an amenable number.

487881081 is a deficient number, since it is larger than the sum of its proper divisors (218227179).

487881081 is a wasteful number, since it uses less digits than its factorization.

487881081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107016 (or 107013 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 45.

The square root of 487881081 is about 22088.0302652817. The cubic root of 487881081 is about 787.2354800168.

The spelling of 487881081 in words is "four hundred eighty-seven million, eight hundred eighty-one thousand, eighty-one".