3965825219 has 2 divisors, whose sum is σ = 3965825220. Its totient is φ = 3965825218.

The previous prime is 3965825191. The next prime is 3965825221. The reversal of 3965825219 is 9125285693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3965825219 - 2²⁰ = 3964776643 is a prime.

It is a super-2 number, since 2×3965825219² = 31455539335312795922, which contains 22 as substring.

Together with 3965825221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3965825239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1982912609 + 1982912610.

It is an arithmetic number, because the mean of its divisors is an integer number (1982912610).

Almost surely, 2^3965825219 is an apocalyptic number.

3965825219 is a deficient number, since it is larger than the sum of its proper divisors (1).

3965825219 is an equidigital number, since it uses as much as digits as its factorization.

3965825219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 50.

The square root of 3965825219 is about 62974.7982847107. The cubic root of 3965825219 is about 1582.8673589094.

The spelling of 3965825219 in words is "three billion, nine hundred sixty-five million, eight hundred twenty-five thousand, two hundred nineteen".