487217 has 4 divisors (see below), whose sum is σ = 512880. Its totient is φ = 461556.

The previous prime is 487213. The next prime is 487219. The reversal of 487217 is 712784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 487217 - 2² = 487213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 487217.

It is not an unprimeable number, because it can be changed into a prime (487211) 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, 12803 + ... + 12840.

It is an arithmetic number, because the mean of its divisors is an integer number (128220).

2⁴⁸⁷²¹⁷ is an apocalyptic number.

It is an amenable number.

487217 is a deficient number, since it is larger than the sum of its proper divisors (25663).

487217 is a wasteful number, since it uses less digits than its factorization.

487217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25662.

The product of its digits is 3136, while the sum is 29.

The square root of 487217 is about 698.0093122588. The cubic root of 487217 is about 78.6878135080.

The spelling of 487217 in words is "four hundred eighty-seven thousand, two hundred seventeen".