6623028 has 18 divisors (see below), whose sum is σ = 16741634. Its totient is φ = 2207664.

The previous prime is 6623027. The next prime is 6623033. The reversal of 6623028 is 8203266.

It can be written as a sum of positive squares in only one way, i.e., 4848804 + 1774224 = 2202^2 + 1332^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 6622992 and 6623010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6623021) 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 5 ways as a sum of consecutive naturals, for example, 91951 + ... + 92022.

Almost surely, 2^6623028 is an apocalyptic number.

It is an amenable number.

6623028 is an abundant number, since it is smaller than the sum of its proper divisors (10118606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6623028 is a wasteful number, since it uses less digits than its factorization.

6623028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183983 (or 183978 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6623028 is about 2573.5244315918. The cubic root of 6623028 is about 187.7956509045.

The spelling of 6623028 in words is "six million, six hundred twenty-three thousand, twenty-eight".