6624149 has 4 divisors (see below), whose sum is σ = 7570464. Its totient is φ = 5677836.

The previous prime is 6624143. The next prime is 6624197. The reversal of 6624149 is 9414266.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6624149 - 2⁸ = 6623893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6624143) 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, 473147 + ... + 473160.

It is an arithmetic number, because the mean of its divisors is an integer number (1892616).

Almost surely, 2^6624149 is an apocalyptic number.

It is an amenable number.

6624149 is a deficient number, since it is larger than the sum of its proper divisors (946315).

6624149 is an equidigital number, since it uses as much as digits as its factorization.

6624149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946314.

The product of its digits is 10368, while the sum is 32.

The square root of 6624149 is about 2573.7422170839. The cubic root of 6624149 is about 187.8062456078.

The spelling of 6624149 in words is "six million, six hundred twenty-four thousand, one hundred forty-nine".