487999 has 4 divisors (see below), whose sum is σ = 490360. Its totient is φ = 485640.

The previous prime is 487997. The next prime is 488003. The reversal of 487999 is 999784.

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 487999 - 2¹ = 487997 is a prime.

It is a Duffinian number.

487999 is a modest number, since divided by 999 gives 487 as remainder.

487999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837 + ... + 1294.

It is an arithmetic number, because the mean of its divisors is an integer number (122590).

2⁴⁸⁷⁹⁹⁹ is an apocalyptic number.

487999 is a deficient number, since it is larger than the sum of its proper divisors (2361).

487999 is a wasteful number, since it uses less digits than its factorization.

487999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360.

The product of its digits is 163296, while the sum is 46.

The square root of 487999 is about 698.5692521146. The cubic root of 487999 is about 78.7298898847.

The spelling of 487999 in words is "four hundred eighty-seven thousand, nine hundred ninety-nine".