3839396849 has 4 divisors (see below), whose sum is σ = 3863851764. Its totient is φ = 3814941936.

The previous prime is 3839396843. The next prime is 3839396879. The reversal of 3839396849 is 9486939383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9486939383 = 2801 ⋅3386983.

It can be written as a sum of positive squares in 2 ways, for example, as 1358659600 + 2480737249 = 36860^2 + 49807^2 .

It is a cyclic number.

It is not a de Polignac number, because 3839396849 - 2⁴ = 3839396833 is a prime.

It is a super-2 number, since 2×3839396849² = 29481936328222257602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3839396791 and 3839396800.

It is not an unprimeable number, because it can be changed into a prime (3839396843) 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, 12227222 + ... + 12227535.

It is an arithmetic number, because the mean of its divisors is an integer number (965962941).

Almost surely, 2^3839396849 is an apocalyptic number.

It is an amenable number.

3839396849 is a deficient number, since it is larger than the sum of its proper divisors (24454915).

3839396849 is a wasteful number, since it uses less digits than its factorization.

3839396849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24454914.

The product of its digits is 30233088, while the sum is 62.

The square root of 3839396849 is about 61962.8666944970. The cubic root of 3839396849 is about 1565.8650641074.

The spelling of 3839396849 in words is "three billion, eight hundred thirty-nine million, three hundred ninety-six thousand, eight hundred forty-nine".