3847758349 has 2 divisors, whose sum is σ = 3847758350. Its totient is φ = 3847758348.

The previous prime is 3847758311. The next prime is 3847758377. The reversal of 3847758349 is 9438577483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2530794249 + 1316964100 = 50307^2 + 36290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3847758349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3847758293 and 3847758302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3847758049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923879174 + 1923879175.

It is an arithmetic number, because the mean of its divisors is an integer number (1923879175).

Almost surely, 2^3847758349 is an apocalyptic number.

It is an amenable number.

3847758349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3847758349 is an equidigital number, since it uses as much as digits as its factorization.

3847758349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 58.

The square root of 3847758349 is about 62030.3018612678. The cubic root of 3847758349 is about 1567.0009619259. Note that the first 3 decimals are identical.

The spelling of 3847758349 in words is "three billion, eight hundred forty-seven million, seven hundred fifty-eight thousand, three hundred forty-nine".