6609406 has 8 divisors (see below), whose sum is σ = 9934704. Its totient is φ = 3297840.

The previous prime is 6609353. The next prime is 6609409. The reversal of 6609406 is 6049066.

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 (6609409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130 + ... + 4213.

It is an arithmetic number, because the mean of its divisors is an integer number (1241838).

Almost surely, 2^6609406 is an apocalyptic number.

6609406 is a deficient number, since it is larger than the sum of its proper divisors (3325298).

6609406 is a wasteful number, since it uses less digits than its factorization.

6609406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6866.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6609406 is about 2570.8765042296. The cubic root of 6609406 is about 187.6668121417. Note that the first 3 decimals are identical.

The spelling of 6609406 in words is "six million, six hundred nine thousand, four hundred six".