6664798 has 16 divisors (see below), whose sum is σ = 11458944. Its totient is φ = 2847960.

The previous prime is 6664789. The next prime is 6664811. The reversal of 6664798 is 8974666.

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, 7813 + ... + 8623.

It is an arithmetic number, because the mean of its divisors is an integer number (716184).

Almost surely, 2^6664798 is an apocalyptic number.

6664798 is a deficient number, since it is larger than the sum of its proper divisors (4794146).

6664798 is a wasteful number, since it uses less digits than its factorization.

6664798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407.

The product of its digits is 435456, while the sum is 46.

The square root of 6664798 is about 2581.6270063663. The cubic root of 6664798 is about 188.1896193063.

The spelling of 6664798 in words is "six million, six hundred sixty-four thousand, seven hundred ninety-eight".