487638163 has 4 divisors (see below), whose sum is σ = 490558320. Its totient is φ = 484718008.

The previous prime is 487638143. The next prime is 487638169. The reversal of 487638163 is 361836784.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 487638163 - 2¹³ = 487629971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487638169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459828 + ... + 1460161.

It is an arithmetic number, because the mean of its divisors is an integer number (122639580).

Almost surely, 2^487638163 is an apocalyptic number.

487638163 is a deficient number, since it is larger than the sum of its proper divisors (2920157).

487638163 is a wasteful number, since it uses less digits than its factorization.

487638163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920156.

The product of its digits is 580608, while the sum is 46.

The square root of 487638163 is about 22082.5307200058. The cubic root of 487638163 is about 787.1048023966.

The spelling of 487638163 in words is "four hundred eighty-seven million, six hundred thirty-eight thousand, one hundred sixty-three".