487308861 has 24 divisors (see below), whose sum is σ = 763083776. Its totient is φ = 297885600.

The previous prime is 487308851. The next prime is 487308869. The reversal of 487308861 is 168803784.

487308861 is a `hidden beast` number, since 487 + 30 + 88 + 61 = 666.

It is not a de Polignac number, because 487308861 - 2⁷ = 487308733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487308869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3876 + ... + 31458.

Almost surely, 2^487308861 is an apocalyptic number.

It is an amenable number.

487308861 is a deficient number, since it is larger than the sum of its proper divisors (275774915).

487308861 is a wasteful number, since it uses less digits than its factorization.

487308861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27753 (or 27750 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 487308861 is about 22075.0732954616. The cubic root of 487308861 is about 786.9275852357.

The spelling of 487308861 in words is "four hundred eighty-seven million, three hundred eight thousand, eight hundred sixty-one".