3561728323 has 2 divisors, whose sum is σ = 3561728324. Its totient is φ = 3561728322.

The previous prime is 3561728297. The next prime is 3561728369. The reversal of 3561728323 is 3238271653.

It is a weak prime.

It is an emirp because it is prime and its reverse (3238271653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3561728323 - 2¹⁷ = 3561597251 is a prime.

It is not a weakly prime, because it can be changed into another prime (3561728383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780864161 + 1780864162.

It is an arithmetic number, because the mean of its divisors is an integer number (1780864162).

Almost surely, 2^3561728323 is an apocalyptic number.

3561728323 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561728323 is an equidigital number, since it uses as much as digits as its factorization.

3561728323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 3561728323 is about 59680.2171829158. The cubic root of 3561728323 is about 1527.1684029434.

Adding to 3561728323 its reverse (3238271653), we get a palindrome (6799999976).

The spelling of 3561728323 in words is "three billion, five hundred sixty-one million, seven hundred twenty-eight thousand, three hundred twenty-three".