3644123 has 4 divisors (see below), whose sum is σ = 4164720. Its totient is φ = 3123528.

The previous prime is 3644117. The next prime is 3644129. The reversal of 3644123 is 3214463.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3214463 = 7 ⋅459209.

It is an interprime number because it is at equal distance from previous prime (3644117) and next prime (3644129).

It is a cyclic number.

It is not a de Polignac number, because 3644123 - 2⁶ = 3644059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3644129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260288 + ... + 260301.

It is an arithmetic number, because the mean of its divisors is an integer number (1041180).

Almost surely, 2^3644123 is an apocalyptic number.

3644123 is a deficient number, since it is larger than the sum of its proper divisors (520597).

3644123 is an equidigital number, since it uses as much as digits as its factorization.

3644123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520596.

The product of its digits is 1728, while the sum is 23.

The square root of 3644123 is about 1908.9586166284. The cubic root of 3644123 is about 153.8854914215.

Adding to 3644123 its reverse (3214463), we get a palindrome (6858586).

The spelling of 3644123 in words is "three million, six hundred forty-four thousand, one hundred twenty-three".