3965225693 has 16 divisors (see below), whose sum is σ = 4766790336. Its totient is φ = 3250074240.

The previous prime is 3965225689. The next prime is 3965225701.

It is a happy number.

3965225693 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 3965225693 - 2² = 3965225689 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965225683) 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 15 ways as a sum of consecutive naturals, for example, 316280 + ... + 328577.

It is an arithmetic number, because the mean of its divisors is an integer number (297924396).

Almost surely, 2^3965225693 is an apocalyptic number.

It is an amenable number.

3965225693 is a deficient number, since it is larger than the sum of its proper divisors (801564643).

3965225693 is a wasteful number, since it uses less digits than its factorization.

3965225693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644924.

The product of its digits is 2624400, while the sum is 50.

The square root of 3965225693 is about 62970.0380577938. The cubic root of 3965225693 is about 1582.7875925802.

The spelling of 3965225693 in words is "three billion, nine hundred sixty-five million, two hundred twenty-five thousand, six hundred ninety-three".