6878566 has 4 divisors (see below), whose sum is σ = 10317852. Its totient is φ = 3439282.

The previous prime is 6878533. The next prime is 6878567. The reversal of 6878566 is 6658786.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6878567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1719640 + ... + 1719643.

It is an arithmetic number, because the mean of its divisors is an integer number (2579463).

Almost surely, 2^6878566 is an apocalyptic number.

6878566 is a deficient number, since it is larger than the sum of its proper divisors (3439286).

6878566 is a wasteful number, since it uses less digits than its factorization.

6878566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439285.

The product of its digits is 483840, while the sum is 46.

The square root of 6878566 is about 2622.7020417882. The cubic root of 6878566 is about 190.1804933034.

The spelling of 6878566 in words is "six million, eight hundred seventy-eight thousand, five hundred sixty-six".