3965228397 has 40 divisors (see below), whose sum is σ = 6425138720. Its totient is φ = 2422496160.

The previous prime is 3965228341. The next prime is 3965228413. The reversal of 3965228397 is 7938225693.

It is a happy number.

3965228397 is a `hidden beast` number, since 39 + 6 + 522 + 83 + 9 + 7 = 666.

It is not a de Polignac number, because 3965228397 - 2¹⁵ = 3965195629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965228317) 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 in 39 ways as a sum of consecutive naturals, for example, 132822 + ... + 159912.

It is an arithmetic number, because the mean of its divisors is an integer number (160628468).

Almost surely, 2^3965228397 is an apocalyptic number.

It is an amenable number.

3965228397 is a deficient number, since it is larger than the sum of its proper divisors (2459910323).

3965228397 is a wasteful number, since it uses less digits than its factorization.

3965228397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27255 (or 27246 counting only the distinct ones).

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

The square root of 3965228397 is about 62970.0595283187. The cubic root of 3965228397 is about 1582.7879523627.

The spelling of 3965228397 in words is "three billion, nine hundred sixty-five million, two hundred twenty-eight thousand, three hundred ninety-seven".