3979219 has 2 divisors, whose sum is σ = 3979220. Its totient is φ = 3979218.

The previous prime is 3979211. The next prime is 3979229. The reversal of 3979219 is 9129793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3979219 - 2³ = 3979211 is a prime.

It is a super-2 number, since 2×3979219² = 31668367699922, which contains 22 as substring.

3979219 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3979211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1989609 + 1989610.

It is an arithmetic number, because the mean of its divisors is an integer number (1989610).

Almost surely, 2^3979219 is an apocalyptic number.

3979219 is a deficient number, since it is larger than the sum of its proper divisors (1).

3979219 is an equidigital number, since it uses as much as digits as its factorization.

3979219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 40.

The square root of 3979219 is about 1994.7979847594. The cubic root of 3979219 is about 158.4647295859.

The spelling of 3979219 in words is "three million, nine hundred seventy-nine thousand, two hundred nineteen".