6487859 has 8 divisors (see below), whose sum is σ = 7438848. Its totient is φ = 5542920.

The previous prime is 6487849. The next prime is 6487879. The reversal of 6487859 is 9587846.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6487859 is a prime.

It is a d-powerful number, because it can be written as 6² + 4¹¹ + 8³ + 7⁶ + 8⁷ + 5⁷ + 9² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6487849) 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, 1094 + ... + 3764.

It is an arithmetic number, because the mean of its divisors is an integer number (929856).

Almost surely, 2^6487859 is an apocalyptic number.

6487859 is a deficient number, since it is larger than the sum of its proper divisors (950989).

6487859 is a wasteful number, since it uses less digits than its factorization.

6487859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025.

The product of its digits is 483840, while the sum is 47.

The square root of 6487859 is about 2547.1275979032. The cubic root of 6487859 is about 186.5092894768.

The spelling of 6487859 in words is "six million, four hundred eighty-seven thousand, eight hundred fifty-nine".