3856179449 has 4 divisors (see below), whose sum is σ = 3856526580. Its totient is φ = 3855832320.

The previous prime is 3856179433. The next prime is 3856179463. The reversal of 3856179449 is 9449716583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9449716583 = 3301 ⋅2862683.

It can be written as a sum of positive squares in 2 ways, for example, as 2721500224 + 1134679225 = 52168^2 + 33685^2 .

It is a cyclic number.

It is not a de Polignac number, because 3856179449 - 2⁴ = 3856179433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3856179394 and 3856179403.

It is not an unprimeable number, because it can be changed into a prime (3856179049) 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 3 ways as a sum of consecutive naturals, for example, 156332 + ... + 179309.

It is an arithmetic number, because the mean of its divisors is an integer number (964131645).

Almost surely, 2^3856179449 is an apocalyptic number.

It is an amenable number.

3856179449 is a deficient number, since it is larger than the sum of its proper divisors (347131).

3856179449 is a wasteful number, since it uses less digits than its factorization.

3856179449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347130.

The product of its digits is 6531840, while the sum is 56.

The square root of 3856179449 is about 62098.1436840104. The cubic root of 3856179449 is about 1568.1432942991.

The spelling of 3856179449 in words is "three billion, eight hundred fifty-six million, one hundred seventy-nine thousand, four hundred forty-nine".