3953455217 has 16 divisors (see below), whose sum is σ = 4256136192. Its totient is φ = 3665450880.

The previous prime is 3953455183. The next prime is 3953455237. The reversal of 3953455217 is 7125543593.

It is a de Polignac number, because none of the positive numbers 2^k-3953455217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3953455237) 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, 34928 + ... + 95534.

It is an arithmetic number, because the mean of its divisors is an integer number (266008512).

Almost surely, 2^3953455217 is an apocalyptic number.

3953455217 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3953455217 is a deficient number, since it is larger than the sum of its proper divisors (302680975).

3953455217 is a wasteful number, since it uses less digits than its factorization.

3953455217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60728.

The product of its digits is 567000, while the sum is 44.

The square root of 3953455217 is about 62876.5076717847. The cubic root of 3953455217 is about 1581.2199114982.

The spelling of 3953455217 in words is "three billion, nine hundred fifty-three million, four hundred fifty-five thousand, two hundred seventeen".