3683321965 has 4 divisors (see below), whose sum is σ = 4419986364. Its totient is φ = 2946657568.

The previous prime is 3683321963. The next prime is 3683321981. The reversal of 3683321965 is 5691233863.

3683321965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1948516164 + 1734805801 = 44142^2 + 41651^2 .

It is a cyclic number.

It is not a de Polignac number, because 3683321965 - 2¹ = 3683321963 is a prime.

It is a super-2 number, since 2×3683321965² = 27133721395702922450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3683321963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368332192 + ... + 368332201.

It is an arithmetic number, because the mean of its divisors is an integer number (1104996591).

Almost surely, 2^3683321965 is an apocalyptic number.

It is an amenable number.

3683321965 is a deficient number, since it is larger than the sum of its proper divisors (736664399).

3683321965 is an equidigital number, since it uses as much as digits as its factorization.

3683321965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736664398.

The product of its digits is 699840, while the sum is 46.

The square root of 3683321965 is about 60690.3778617336. The cubic root of 3683321965 is about 1544.3529462680.

The spelling of 3683321965 in words is "three billion, six hundred eighty-three million, three hundred twenty-one thousand, nine hundred sixty-five".