6406606 has 8 divisors (see below), whose sum is σ = 9658800. Its totient is φ = 3187008.

The previous prime is 6406601. The next prime is 6406639. The reversal of 6406606 is 6066046.

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 (6406601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7651 + ... + 8446.

It is an arithmetic number, because the mean of its divisors is an integer number (1207350).

Almost surely, 2^6406606 is an apocalyptic number.

6406606 is a deficient number, since it is larger than the sum of its proper divisors (3252194).

6406606 is a wasteful number, since it uses less digits than its factorization.

6406606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16298.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6406606 is about 2531.1274167849. The cubic root of 6406606 is about 185.7274112448.

The spelling of 6406606 in words is "six million, four hundred six thousand, six hundred six".