3822581989 has 2 divisors, whose sum is σ = 3822581990. Its totient is φ = 3822581988.

The previous prime is 3822581977. The next prime is 3822582011. The reversal of 3822581989 is 9891852283.

It is a happy number.

3822581989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3741401889 + 81180100 = 61167^2 + 9010^2 .

It is a cyclic number.

It is not a de Polignac number, because 3822581989 - 2¹¹ = 3822579941 is a prime.

It is a super-2 number, since 2×3822581989² = 29224266125254392242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3822581909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1911290994 + 1911290995.

It is an arithmetic number, because the mean of its divisors is an integer number (1911290995).

Almost surely, 2^3822581989 is an apocalyptic number.

It is an amenable number.

3822581989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3822581989 is an equidigital number, since it uses as much as digits as its factorization.

3822581989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 55.

The square root of 3822581989 is about 61827.0328335430. The cubic root of 3822581989 is about 1563.5757867119.

The spelling of 3822581989 in words is "three billion, eight hundred twenty-two million, five hundred eighty-one thousand, nine hundred eighty-nine".