6623575 has 18 divisors (see below), whose sum is σ = 9555936. Its totient is φ = 4541040.

The previous prime is 6623549. The next prime is 6623581. The reversal of 6623575 is 5753266.

It is not a de Polignac number, because 6623575 - 2¹⁵ = 6590807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6623575.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 1479 + ... + 3928.

Almost surely, 2^6623575 is an apocalyptic number.

6623575 is a deficient number, since it is larger than the sum of its proper divisors (2932361).

6623575 is a wasteful number, since it uses less digits than its factorization.

6623575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431 (or 5419 counting only the distinct ones).

The product of its digits is 37800, while the sum is 34.

The square root of 6623575 is about 2573.6307038890. The cubic root of 6623575 is about 187.8008208154.

The spelling of 6623575 in words is "six million, six hundred twenty-three thousand, five hundred seventy-five".