3643523 has 8 divisors (see below), whose sum is σ = 4050816. Its totient is φ = 3254400.

The previous prime is 3643517. The next prime is 3643529. The reversal of 3643523 is 3253463.

3643523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3643517) and next prime (3643529).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3643523 - 2⁸ = 3643267 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3643492 and 3643501.

It is not an unprimeable number, because it can be changed into a prime (3643529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4118 + ... + 4923.

It is an arithmetic number, because the mean of its divisors is an integer number (506352).

Almost surely, 2^3643523 is an apocalyptic number.

3643523 is a deficient number, since it is larger than the sum of its proper divisors (407293).

3643523 is a wasteful number, since it uses less digits than its factorization.

3643523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085.

The product of its digits is 6480, while the sum is 26.

The square root of 3643523 is about 1908.8014564119. The cubic root of 3643523 is about 153.8770452775.

Adding to 3643523 its reverse (3253463), we get a palindrome (6896986).

The spelling of 3643523 in words is "three million, six hundred forty-three thousand, five hundred twenty-three".