411611989 has 2 divisors, whose sum is σ = 411611990. Its totient is φ = 411611988.

The previous prime is 411611927. The next prime is 411612037. The reversal of 411611989 is 989116114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406344964 + 5267025 = 20158^2 + 2295^2 .

It is a cyclic number.

It is not a de Polignac number, because 411611989 - 2¹⁷ = 411480917 is a prime.

It is a super-2 number, since 2×411611989² = 338848858977072242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411611689) 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, 205805994 + 205805995.

It is an arithmetic number, because the mean of its divisors is an integer number (205805995).

Almost surely, 2^411611989 is an apocalyptic number.

It is an amenable number.

411611989 is a deficient number, since it is larger than the sum of its proper divisors (1).

411611989 is an equidigital number, since it uses as much as digits as its factorization.

411611989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 40.

The square root of 411611989 is about 20288.2229137990. Note that the first 3 decimals coincide. The cubic root of 411611989 is about 743.8682207010.

The spelling of 411611989 in words is "four hundred eleven million, six hundred eleven thousand, nine hundred eighty-nine".