487811979 has 6 divisors (see below), whose sum is σ = 704617316. Its totient is φ = 325207980.

The previous prime is 487811977. The next prime is 487812007. The reversal of 487811979 is 979118784.

487811979 is a `hidden beast` number, since 487 + 81 + 19 + 79 = 666.

It is not a de Polignac number, because 487811979 - 2¹ = 487811977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487811977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27100657 + ... + 27100674.

Almost surely, 2^487811979 is an apocalyptic number.

487811979 is a deficient number, since it is larger than the sum of its proper divisors (216805337).

487811979 is a wasteful number, since it uses less digits than its factorization.

487811979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54201337 (or 54201334 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 487811979 is about 22086.4659690046. The cubic root of 487811979 is about 787.1983110448.

The spelling of 487811979 in words is "four hundred eighty-seven million, eight hundred eleven thousand, nine hundred seventy-nine".