6624005 has 6 divisors (see below), whose sum is σ = 7955718. Its totient is φ = 5294600.

The previous prime is 6623963. The next prime is 6624017. The reversal of 6624005 is 5004266.

It can be written as a sum of positive squares in only one way, i.e., 5299204 + 1324801 = 2302^2 + 1151^2 .

It is not a de Polignac number, because 6624005 - 2¹⁰ = 6622981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5180 + ... + 6330.

It is an arithmetic number, because the mean of its divisors is an integer number (1325953).

Almost surely, 2^6624005 is an apocalyptic number.

It is an amenable number.

6624005 is a deficient number, since it is larger than the sum of its proper divisors (1331713).

6624005 is an frugal number, since it uses more digits than its factorization.

6624005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6624005 is about 2573.7142421023. The cubic root of 6624005 is about 187.8048847137.

The spelling of 6624005 in words is "six million, six hundred twenty-four thousand, five".