3953288221 has 8 divisors (see below), whose sum is σ = 3980897280. Its totient is φ = 3925734192.

The previous prime is 3953288203. The next prime is 3953288243. The reversal of 3953288221 is 1228823593.

3953288221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3953288221 - 2⁵ = 3953288189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3953288201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136060 + ... + 162538.

It is an arithmetic number, because the mean of its divisors is an integer number (497612160).

Almost surely, 2^3953288221 is an apocalyptic number.

It is an amenable number.

3953288221 is a deficient number, since it is larger than the sum of its proper divisors (27609059).

3953288221 is a wasteful number, since it uses less digits than its factorization.

3953288221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27515.

The product of its digits is 207360, while the sum is 43.

The square root of 3953288221 is about 62875.1796896041. The cubic root of 3953288221 is about 1581.1976473348.

The spelling of 3953288221 in words is "three billion, nine hundred fifty-three million, two hundred eighty-eight thousand, two hundred twenty-one".