3953953217 has 2 divisors, whose sum is σ = 3953953218. Its totient is φ = 3953953216.

The previous prime is 3953953189. The next prime is 3953953277. The reversal of 3953953217 is 7123593593.

It is a happy number.

3953953217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3951882496 + 2070721 = 62864^2 + 1439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3953953217 is a prime.

It is not a weakly prime, because it can be changed into another prime (3953953277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1976976608 + 1976976609.

It is an arithmetic number, because the mean of its divisors is an integer number (1976976609).

Almost surely, 2^3953953217 is an apocalyptic number.

It is an amenable number.

3953953217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3953953217 is an equidigital number, since it uses as much as digits as its factorization.

3953953217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 765450, while the sum is 47.

The square root of 3953953217 is about 62880.4676906907. The cubic root of 3953953217 is about 1581.2863019011.

The spelling of 3953953217 in words is "three billion, nine hundred fifty-three million, nine hundred fifty-three thousand, two hundred seventeen".