6659854 has 16 divisors (see below), whose sum is σ = 10391040. Its totient is φ = 3197880.

The previous prime is 6659843. The next prime is 6659893. The reversal of 6659854 is 4589566.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6659854.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 9777 + ... + 10435.

It is an arithmetic number, because the mean of its divisors is an integer number (649440).

Almost surely, 2^6659854 is an apocalyptic number.

6659854 is a deficient number, since it is larger than the sum of its proper divisors (3731186).

6659854 is a wasteful number, since it uses less digits than its factorization.

6659854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its digits is 259200, while the sum is 43.

The square root of 6659854 is about 2580.6692930323. The cubic root of 6659854 is about 188.1430742781.

The spelling of 6659854 in words is "six million, six hundred fifty-nine thousand, eight hundred fifty-four".