6622423 has 2 divisors, whose sum is σ = 6622424. Its totient is φ = 6622422.

The previous prime is 6622391. The next prime is 6622457. The reversal of 6622423 is 3242266.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6622423 - 2⁵ = 6622391 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6622493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311211 + 3311212.

It is an arithmetic number, because the mean of its divisors is an integer number (3311212).

Almost surely, 2^6622423 is an apocalyptic number.

6622423 is a deficient number, since it is larger than the sum of its proper divisors (1).

6622423 is an equidigital number, since it uses as much as digits as its factorization.

6622423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 6622423 is about 2573.4068858228. The cubic root of 6622423 is about 187.7899324815.

Adding to 6622423 its reverse (3242266), we get a palindrome (9864689).

The spelling of 6622423 in words is "six million, six hundred twenty-two thousand, four hundred twenty-three".