3643505323 has 2 divisors, whose sum is σ = 3643505324. Its totient is φ = 3643505322.

The previous prime is 3643505321. The next prime is 3643505351. The reversal of 3643505323 is 3235053463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3643505323 - 2¹ = 3643505321 is a prime.

Together with 3643505321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3643505321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821752661 + 1821752662.

It is an arithmetic number, because the mean of its divisors is an integer number (1821752662).

Almost surely, 2^3643505323 is an apocalyptic number.

3643505323 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643505323 is an equidigital number, since it uses as much as digits as its factorization.

3643505323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 34.

The square root of 3643505323 is about 60361.4556070345. The cubic root of 3643505323 is about 1538.7679642599.

Adding to 3643505323 its reverse (3235053463), we get a palindrome (6878558786).

The spelling of 3643505323 in words is "three billion, six hundred forty-three million, five hundred five thousand, three hundred twenty-three".