6622623 has 24 divisors (see below), whose sum is σ = 11288576. Its totient is φ = 3661200.

The previous prime is 6622619. The next prime is 6622631. The reversal of 6622623 is 3262266.

It is a happy number.

It is not a de Polignac number, because 6622623 - 2² = 6622619 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 (6622663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258 + ... + 3648.

Almost surely, 2^6622623 is an apocalyptic number.

6622623 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6622623 is a deficient number, since it is larger than the sum of its proper divisors (4665953).

6622623 is a wasteful number, since it uses less digits than its factorization.

6622623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435 (or 3432 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 6622623 is about 2573.4457445223. The cubic root of 6622623 is about 187.7918229078.

Adding to 6622623 its reverse (3262266), we get a palindrome (9884889).

The spelling of 6622623 in words is "six million, six hundred twenty-two thousand, six hundred twenty-three".