6487868 has 12 divisors (see below), whose sum is σ = 11427192. Its totient is φ = 3222960.

The previous prime is 6487849. The next prime is 6487879. The reversal of 6487868 is 8687846.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4538 + ... + 5793.

It is an arithmetic number, because the mean of its divisors is an integer number (952266).

Almost surely, 2^6487868 is an apocalyptic number.

It is an amenable number.

6487868 is a deficient number, since it is larger than the sum of its proper divisors (4939324).

6487868 is a wasteful number, since it uses less digits than its factorization.

6487868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10492 (or 10490 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 6487868 is about 2547.1293645985. The cubic root of 6487868 is about 186.5093757191.

It can be divided in two parts, 64878 and 68, that added together give a palindrome (64946).

The spelling of 6487868 in words is "six million, four hundred eighty-seven thousand, eight hundred sixty-eight".