3965223365 has 8 divisors (see below), whose sum is σ = 4874323608. Its totient is φ = 3094808320.

The previous prime is 3965223349. The next prime is 3965223377. The reversal of 3965223365 is 5633225693.

3965223365 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1387684 + 3963835681 = 1178^2 + 62959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3965223365 - 2⁴ = 3965223349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9671072 + ... + 9671481.

It is an arithmetic number, because the mean of its divisors is an integer number (609290451).

Almost surely, 2^3965223365 is an apocalyptic number.

It is an amenable number.

3965223365 is a deficient number, since it is larger than the sum of its proper divisors (909100243).

3965223365 is a wasteful number, since it uses less digits than its factorization.

3965223365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19342599.

The product of its digits is 874800, while the sum is 44.

The square root of 3965223365 is about 62970.0195728094. The cubic root of 3965223365 is about 1582.7872828264.

The spelling of 3965223365 in words is "three billion, nine hundred sixty-five million, two hundred twenty-three thousand, three hundred sixty-five".