6626443 has 2 divisors, whose sum is σ = 6626444. Its totient is φ = 6626442.

The previous prime is 6626423. The next prime is 6626453. The reversal of 6626443 is 3446266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6626443 - 2¹⁷ = 6495371 is a prime.

It is not a weakly prime, because it can be changed into another prime (6626423) 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 as a sum of consecutive naturals, namely, 3313221 + 3313222.

It is an arithmetic number, because the mean of its divisors is an integer number (3313222).

Almost surely, 2^6626443 is an apocalyptic number.

6626443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6626443 is an equidigital number, since it uses as much as digits as its factorization.

6626443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 31.

The square root of 6626443 is about 2574.1878330844. The cubic root of 6626443 is about 187.8279227472.

The spelling of 6626443 in words is "six million, six hundred twenty-six thousand, four hundred forty-three".