487644505 has 32 divisors (see below), whose sum is σ = 631701504. Its totient is φ = 360482496.

The previous prime is 487644503. The next prime is 487644533. The reversal of 487644505 is 505446784.

It is not a de Polignac number, because 487644505 - 2¹ = 487644503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487644503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448072 + ... + 449158.

It is an arithmetic number, because the mean of its divisors is an integer number (19740672).

Almost surely, 2^487644505 is an apocalyptic number.

It is an amenable number.

487644505 is a deficient number, since it is larger than the sum of its proper divisors (144056999).

487644505 is a wasteful number, since it uses less digits than its factorization.

487644505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245.

The product of its (nonzero) digits is 537600, while the sum is 43.

The square root of 487644505 is about 22082.6743172108. The cubic root of 487644505 is about 787.1082146241.

The spelling of 487644505 in words is "four hundred eighty-seven million, six hundred forty-four thousand, five hundred five".