3847869049 has 2 divisors, whose sum is σ = 3847869050. Its totient is φ = 3847869048.

The previous prime is 3847868993. The next prime is 3847869083. The reversal of 3847869049 is 9409687483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2681168400 + 1166700649 = 51780^2 + 34157^2 .

It is a cyclic number.

It is not a de Polignac number, because 3847869049 - 2¹³ = 3847860857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3847868984 and 3847869002.

It is not a weakly prime, because it can be changed into another prime (3847869149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923934524 + 1923934525.

It is an arithmetic number, because the mean of its divisors is an integer number (1923934525).

Almost surely, 2^3847869049 is an apocalyptic number.

It is an amenable number.

3847869049 is a deficient number, since it is larger than the sum of its proper divisors (1).

3847869049 is an equidigital number, since it uses as much as digits as its factorization.

3847869049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The square root of 3847869049 is about 62031.1941606802. The cubic root of 3847869049 is about 1567.0159893200.

The spelling of 3847869049 in words is "three billion, eight hundred forty-seven million, eight hundred sixty-nine thousand, forty-nine".