3644423 has 2 divisors, whose sum is σ = 3644424. Its totient is φ = 3644422.

The previous prime is 3644411. The next prime is 3644437. The reversal of 3644423 is 3244463.

It is a weak prime.

It is an emirp because it is prime and its reverse (3244463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3644423 - 2¹² = 3640327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3644392 and 3644401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3644483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822211 + 1822212.

It is an arithmetic number, because the mean of its divisors is an integer number (1822212).

Almost surely, 2^3644423 is an apocalyptic number.

3644423 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644423 is an equidigital number, since it uses as much as digits as its factorization.

3644423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 26.

The square root of 3644423 is about 1909.0371918850. The cubic root of 3644423 is about 153.8897141459.

Adding to 3644423 its reverse (3244463), we get a palindrome (6888886).

The spelling of 3644423 in words is "three million, six hundred forty-four thousand, four hundred twenty-three".