6624406 has 8 divisors (see below), whose sum is σ = 10205280. Its totient is φ = 3222648.

The previous prime is 6624379. The next prime is 6624413. The reversal of 6624406 is 6044266.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44686 + ... + 44833.

It is an arithmetic number, because the mean of its divisors is an integer number (1275660).

Almost surely, 2^6624406 is an apocalyptic number.

6624406 is a deficient number, since it is larger than the sum of its proper divisors (3580874).

6624406 is a wasteful number, since it uses less digits than its factorization.

6624406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89558.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 6624406 is about 2573.7921438997. The cubic root of 6624406 is about 187.8086743766.

The spelling of 6624406 in words is "six million, six hundred twenty-four thousand, four hundred six".