500655987 has 12 divisors (see below), whose sum is σ = 778798384. Its totient is φ = 308095920.

The previous prime is 500655979. The next prime is 500656021. The reversal of 500655987 is 789556005.

500655987 is a `hidden beast` number, since 50 + 0 + 6 + 5 + 598 + 7 = 666.

It is not a de Polignac number, because 500655987 - 2³ = 500655979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (500655937) 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, 2139439 + ... + 2139672.

Almost surely, 2^500655987 is an apocalyptic number.

500655987 is a deficient number, since it is larger than the sum of its proper divisors (278142397).

500655987 is a wasteful number, since it uses less digits than its factorization.

500655987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279130 (or 4279127 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 500655987 is about 22375.3432822828. The cubic root of 500655987 is about 794.0474791151.

The spelling of 500655987 in words is "five hundred million, six hundred fifty-five thousand, nine hundred eighty-seven".