3922861849 has 2 divisors, whose sum is σ = 3922861850. Its totient is φ = 3922861848.

The previous prime is 3922861793. The next prime is 3922861867. The reversal of 3922861849 is 9481682293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3557287449 + 365574400 = 59643^2 + 19120^2 .

It is a cyclic number.

It is not a de Polignac number, because 3922861849 - 2¹³ = 3922853657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3922861796 and 3922861805.

It is not a weakly prime, because it can be changed into another prime (3922861879) 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 as a sum of consecutive naturals, namely, 1961430924 + 1961430925.

It is an arithmetic number, because the mean of its divisors is an integer number (1961430925).

Almost surely, 2^3922861849 is an apocalyptic number.

It is an amenable number.

3922861849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3922861849 is an equidigital number, since it uses as much as digits as its factorization.

3922861849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 52.

The square root of 3922861849 is about 62632.7538034214. The cubic root of 3922861849 is about 1577.1306477782.

The spelling of 3922861849 in words is "three billion, nine hundred twenty-two million, eight hundred sixty-one thousand, eight hundred forty-nine".