6659774 has 16 divisors (see below), whose sum is σ = 11007360. Its totient is φ = 2996760.

The previous prime is 6659773. The next prime is 6659777. The reversal of 6659774 is 4779566.

It is a d-powerful number, because it can be written as 6³ + 6⁴ + 5⁵ + 9⁷ + 7² + 7⁷ + 4¹⁰ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6659773) 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, 797 + ... + 3735.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^6659774 is an apocalyptic number.

6659774 is a deficient number, since it is larger than the sum of its proper divisors (4347586).

6659774 is a wasteful number, since it uses less digits than its factorization.

6659774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055.

The product of its digits is 317520, while the sum is 44.

The square root of 6659774 is about 2580.6537931307. The cubic root of 6659774 is about 188.1423209329.

The spelling of 6659774 in words is "six million, six hundred fifty-nine thousand, seven hundred seventy-four".