3965827329 has 6 divisors (see below), whose sum is σ = 5728417266. Its totient is φ = 2643884880.

The previous prime is 3965827309. The next prime is 3965827339. The reversal of 3965827329 is 9237285693.

It is a happy number.

3965827329 is a `hidden beast` number, since 39 + 6 + 582 + 7 + 3 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3962954304 + 2873025 = 62952^2 + 1695^2 .

It is not a de Polignac number, because 3965827329 - 2⁵ = 3965827297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3965827309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220323732 + ... + 220323749.

It is an arithmetic number, because the mean of its divisors is an integer number (954736211).

Almost surely, 2^3965827329 is an apocalyptic number.

It is an amenable number.

3965827329 is a deficient number, since it is larger than the sum of its proper divisors (1762589937).

3965827329 is a wasteful number, since it uses less digits than its factorization.

3965827329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440647487 (or 440647484 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 3965827329 is about 62974.8150374418. The cubic root of 3965827329 is about 1582.8676396285.

The spelling of 3965827329 in words is "three billion, nine hundred sixty-five million, eight hundred twenty-seven thousand, three hundred twenty-nine".