4644423 has 12 divisors (see below), whose sum is σ = 7667088. Its totient is φ = 2653920.

The previous prime is 4644403. The next prime is 4644433. The reversal of 4644423 is 3244464.

It is not a de Polignac number, because 4644423 - 2⁹ = 4643911 is a prime.

4644423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36798 + ... + 36923.

It is an arithmetic number, because the mean of its divisors is an integer number (638924).

Almost surely, 2^4644423 is an apocalyptic number.

4644423 is a deficient number, since it is larger than the sum of its proper divisors (3022665).

4644423 is a wasteful number, since it uses less digits than its factorization.

4644423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73734 (or 73731 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 4644423 is about 2155.0923414091. The cubic root of 4644423 is about 166.8439983650.

Adding to 4644423 its reverse (3244464), we get a palindrome (7888887).

The spelling of 4644423 in words is "four million, six hundred forty-four thousand, four hundred twenty-three".