3285629665 has 4 divisors (see below), whose sum is σ = 3942755604. Its totient is φ = 2628503728.

The previous prime is 3285629657. The next prime is 3285629707. The reversal of 3285629665 is 5669265823.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5669265823 = 13 ⋅436097371.

It can be written as a sum of positive squares in 2 ways, for example, as 988536481 + 2297093184 = 31441^2 + 47928^2 .

It is a cyclic number.

It is not a de Polignac number, because 3285629665 - 2³ = 3285629657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328562962 + ... + 328562971.

It is an arithmetic number, because the mean of its divisors is an integer number (985688901).

Almost surely, 2^3285629665 is an apocalyptic number.

It is an amenable number.

3285629665 is a deficient number, since it is larger than the sum of its proper divisors (657125939).

3285629665 is an equidigital number, since it uses as much as digits as its factorization.

3285629665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657125938.

The product of its digits is 4665600, while the sum is 52.

The square root of 3285629665 is about 57320.4122891662. The cubic root of 3285629665 is about 1486.6413342412.

The spelling of 3285629665 in words is "three billion, two hundred eighty-five million, six hundred twenty-nine thousand, six hundred sixty-five".