3660447313 has 4 divisors (see below), whose sum is σ = 3720454708. Its totient is φ = 3600439920.

The previous prime is 3660447311. The next prime is 3660447331. The reversal of 3660447313 is 3137440663.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 166100544 + 3494346769 = 12888^2 + 59113^2 .

It is a cyclic number.

It is not a de Polignac number, because 3660447313 - 2¹ = 3660447311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3660447311) 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 in 3 ways as a sum of consecutive naturals, for example, 30003606 + ... + 30003727.

It is an arithmetic number, because the mean of its divisors is an integer number (930113677).

Almost surely, 2^3660447313 is an apocalyptic number.

It is an amenable number.

3660447313 is a deficient number, since it is larger than the sum of its proper divisors (60007395).

3660447313 is an equidigital number, since it uses as much as digits as its factorization.

3660447313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60007394.

The product of its (nonzero) digits is 108864, while the sum is 37.

The square root of 3660447313 is about 60501.6306639747. The cubic root of 3660447313 is about 1541.1493237639.

Adding to 3660447313 its reverse (3137440663), we get a palindrome (6797887976).

The spelling of 3660447313 in words is "three billion, six hundred sixty million, four hundred forty-seven thousand, three hundred thirteen".