6622624 has 24 divisors (see below), whose sum is σ = 13097700. Its totient is φ = 3296256.

The previous prime is 6622619. The next prime is 6622631. The reversal of 6622624 is 4262266.

It can be written as a sum of positive squares in 2 ways, for example, as 6411024 + 211600 = 2532^2 + 460^2 .

It is a d-powerful number, because it can be written as 6⁶ + 6⁶ + 2⁵ + 2¹⁷ + 6⁸ + 2¹⁹ + 4¹¹ .

It is a junction number, because it is equal to n+sod(n) for n = 6622592 and 6622601.

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, 10872 + ... + 11464.

Almost surely, 2^6622624 is an apocalyptic number.

It is an amenable number.

6622624 is a deficient number, since it is larger than the sum of its proper divisors (6475076).

6622624 is a wasteful number, since it uses less digits than its factorization.

6622624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 944 counting only the distinct ones).

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

The square root of 6622624 is about 2573.4459388143. The cubic root of 6622624 is about 187.7918323598.

It can be divided in two parts, 662262 and 4, that added together give a palindrome (662266).

The spelling of 6622624 in words is "six million, six hundred twenty-two thousand, six hundred twenty-four".