3665414321 has 2 divisors, whose sum is σ = 3665414322. Its totient is φ = 3665414320.

The previous prime is 3665414281. The next prime is 3665414323. The reversal of 3665414321 is 1234145663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3339106225 + 326308096 = 57785^2 + 18064^2 .

It is a cyclic number.

It is not a de Polignac number, because 3665414321 - 2¹⁴ = 3665397937 is a prime.

Together with 3665414323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3665414323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832707160 + 1832707161.

It is an arithmetic number, because the mean of its divisors is an integer number (1832707161).

Almost surely, 2^3665414321 is an apocalyptic number.

It is an amenable number.

3665414321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665414321 is an equidigital number, since it uses as much as digits as its factorization.

3665414321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 3665414321 is about 60542.6652948150. The cubic root of 3665414321 is about 1541.8460911769.

Adding to 3665414321 its reverse (1234145663), we get a palindrome (4899559984).

The spelling of 3665414321 in words is "three billion, six hundred sixty-five million, four hundred fourteen thousand, three hundred twenty-one".