6666598 has 8 divisors (see below), whose sum is σ = 10029600. Its totient is φ = 3323400.

The previous prime is 6666593. The next prime is 6666599. The reversal of 6666598 is 8956666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666593) 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 in 3 ways as a sum of consecutive naturals, for example, 4078 + ... + 5473.

It is an arithmetic number, because the mean of its divisors is an integer number (1253700).

Almost surely, 2^6666598 is an apocalyptic number.

6666598 is a deficient number, since it is larger than the sum of its proper divisors (3363002).

6666598 is a wasteful number, since it uses less digits than its factorization.

6666598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9902.

The product of its digits is 466560, while the sum is 46.

The square root of 6666598 is about 2581.9756001945. The cubic root of 6666598 is about 188.2065595959.

The spelling of 6666598 in words is "six million, six hundred sixty-six thousand, five hundred ninety-eight".