487817 has 8 divisors (see below), whose sum is σ = 541632. Its totient is φ = 435600.

The previous prime is 487811. The next prime is 487819. The reversal of 487817 is 718784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 487817 - 2⁸ = 487561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308 + ... + 1034.

It is an arithmetic number, because the mean of its divisors is an integer number (67704).

2⁴⁸⁷⁸¹⁷ is an apocalyptic number.

It is an amenable number.

487817 is a deficient number, since it is larger than the sum of its proper divisors (53815).

487817 is a wasteful number, since it uses less digits than its factorization.

487817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799.

The product of its digits is 12544, while the sum is 35.

The square root of 487817 is about 698.4389737121. The cubic root of 487817 is about 78.7201011887.

The spelling of 487817 in words is "four hundred eighty-seven thousand, eight hundred seventeen".