6623311 has 2 divisors, whose sum is σ = 6623312. Its totient is φ = 6623310.

The previous prime is 6623303. The next prime is 6623321. The reversal of 6623311 is 1133266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6623311 - 2³ = 6623303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6623321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311655 + 3311656.

It is an arithmetic number, because the mean of its divisors is an integer number (3311656).

Almost surely, 2^6623311 is an apocalyptic number.

6623311 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623311 is an equidigital number, since it uses as much as digits as its factorization.

6623311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 6623311 is about 2573.5794139680. The cubic root of 6623311 is about 187.7983256837.

Adding to 6623311 its reverse (1133266), we get a palindrome (7756577).

The spelling of 6623311 in words is "six million, six hundred twenty-three thousand, three hundred eleven".