487865 has 16 divisors (see below), whose sum is σ = 684288. Its totient is φ = 326976.

The previous prime is 487843. The next prime is 487873. The reversal of 487865 is 568784.

It is a cyclic number.

It is not a de Polignac number, because 487865 - 2¹⁴ = 471481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1724 + ... + 1986.

It is an arithmetic number, because the mean of its divisors is an integer number (42768).

2⁴⁸⁷⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

487865 is a deficient number, since it is larger than the sum of its proper divisors (196423).

487865 is a wasteful number, since it uses less digits than its factorization.

487865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328.

The product of its digits is 53760, while the sum is 38.

The square root of 487865 is about 698.4733352104. The cubic root of 487865 is about 78.7226830591.

The spelling of 487865 in words is "four hundred eighty-seven thousand, eight hundred sixty-five".